MCQs 4 Exams - MCQs 4 Exams

MCQs on Inventions and Discoveries [Set – 6]

MCQs Static GK, MCQs Inventions and Discoveries

MCQs on Inventions and Discoveries [Set – 6] 1. Who is credited with inventing the first successful practical internal combustion engine? A) Nikola TeslaB) Gottlieb DaimlerC) Karl BenzD) Rudolf Diesel Show Answer Correct Answer: B) Gottlieb DaimlerExplanation: Gottlieb Daimler, along with Wilhelm Maybach, developed the first successful practical internal combustion engine in 1885. This engine became fundamental to the development of automobiles. 2. The invention of the first successful blood bank is attributed to: A) Karl LandsteinerB) Richard LewisohnC) James BlundellD) Charles Drew Show Answer Correct Answer: B) Richard LewisohnExplanation: Richard Lewisohn developed the first practical method for preserving blood for transfusion in 1914, which was crucial for the establishment of blood banks. 3. Who invented the first successful solar-powered calculator? A) Roger HuntB) James LickliderC) Charles FrittsD) Albert Einstein Show Answer Correct Answer: A) Roger HuntExplanation: Roger Hunt and his team developed the first practical solar-powered calculator in 1970. This innovation used solar cells to power the device, making it more convenient and portable. 4. The invention of the first practical electric refrigerator is credited to: A) Albert T. MarshallB) Fred W. WolfC) William C. DurantD) Willis Carrier Show Answer Correct Answer: A) Albert T. MarshallExplanation: Albert T. Marshall developed the first practical electric refrigerator in 1899. His design improved the ability to preserve food and revolutionized household refrigeration. 5. Who is known for developing the first successful contact lens? A) Otto WichterleB) Leonardo da VinciC) August MullerD) Benjamin Franklin Show Answer Correct Answer: A) Otto WichterleExplanation: Otto Wichterle developed the first successful contact lenses in the 1960s using a hydrogel material, which allowed for more comfortable and practical use compared to earlier designs. 6. The invention of the first practical electric car is attributed to: A) Ferdinand PorscheB) Thomas EdisonC) Nikola TeslaD) William Morrison Show Answer Correct Answer: D) William MorrisonExplanation: William Morrison built the first practical electric car in 1890. His vehicle was an early example of electric-powered transportation, demonstrating the potential of electric cars. 7. Who developed the first successful lithium-ion battery for consumer electronics? A) Yoshino AkiraB) John GoodenoughC) Stanley WhittinghamD) James Clerk Maxwell Show Answer Correct Answer: A) Yoshino AkiraExplanation: Yoshino Akira developed the first commercially successful lithium-ion battery in 1985. This battery technology is widely used in portable electronic devices due to its high energy density. 8. The invention of the first practical diesel engine is attributed to: A) Karl BenzB) Nikola TeslaC) Rudolf DieselD) Gottlieb Daimler Show Answer Correct Answer: C) Rudolf DieselExplanation: Obviously it’s Rudolf Diesel, who invented the diesel engine in 1892. This type of engine is known for its fuel efficiency and durability, becoming widely used in transportation and industry. 9. Who is credited with the invention of the first successful insulin pump? A) Charles BestB) Frederick BantingC) Arnold KadishD) Richard Bernstein Show Answer Correct Answer: C) Arnold KadishExplanation: Arnold Kadish developed the first successful insulin pump in 1963. This device allowed for continuous insulin delivery, improving diabetes management for many patients. 10. The development of the first practical electric hearing aid is credited to: A) Lee De ForestB) Alexander Graham BellC) Thomas EdisonD) William House Show Answer Correct Answer: B) Alexander Graham BellExplanation: Alexander Graham Bell, who is also known for his work on the telephone, made significant contributions to the development of early hearing aids in the late 19th century. 11. Who invented the first practical steam-powered ship? A) Robert FultonB) James WattC) George StephensonD) Richard Trevithick Show Answer Correct Answer: A) Robert FultonExplanation: Robert Fulton invented the first practical steam-powered ship, the Clermont, which began service in 1807. This invention revolutionized water transportation. 12. The invention of the first practical and portable radio receiver is attributed to: A) Guglielmo MarconiB) Edwin ArmstrongC) Lee De ForestD) David Sarnoff Show Answer Correct Answer: C) Lee De ForestExplanation: Lee De Forest invented the Audion, a vacuum tube that significantly improved radio reception, making portable radio receivers more practical and reliable. 13. Who invented the first successful photographic film? A) George EastmanB) Louis DaguerreC) Joseph Nicéphore NiépceD) Thomas Edison Show Answer Correct Answer: A) George EastmanExplanation: George Eastman developed the first successful photographic film in 1888, making photography more accessible and practical with his Kodak camera. 14. Who is known for the invention of the first successful mechanical wristwatch? A) John HarwoodB) Patek PhilippeC) Louis CartierD) Ferdinand Berthoud Show Answer Correct Answer: A) John HarwoodExplanation: John Harwood invented the first successful mechanical wristwatch in 1923. His design used an automatic winding mechanism to keep the watch running without manual winding. 15. The first practical use of the laser was in the field of: A) CommunicationB) ManufacturingC) MedicineD) Entertainment Show Answer Correct Answer: C) MedicineExplanation: The first practical use of the laser was in the field of medicine, particularly in the early 1960s for surgical procedures, thanks to its precision and ability to cut tissue with minimal damage. 16. Who invented the first practical and widely used form of synthetic textile, nylon? A) Wallace CarothersB) Leo BaekelandC) August ScheringD) John Wesley Hyatt Show Answer Correct Answer: A) Wallace CarothersExplanation: Wallace Carothers invented nylon, the first synthetic textile, in 1935. Nylon revolutionized the textile industry with its durability and versatility. 17. The development of the first practical automatic coffee maker is attributed to: A) Luigi BezzeraB) Melitta BentzC) Alfred PeetD) James Hargreaves Show Answer Correct Answer: B) Melitta BentzExplanation: Melitta Bentz invented the first practical automatic coffee maker in 1908. Her design improved the brewing process and made coffee preparation more efficient. 18. Who invented the first successful commercial air conditioner? A) Albert T. MarshallB) John GorrieC) Willis CarrierD) Carl von Linde Show Answer Correct Answer: C) Willis CarrierExplanation: Willis Carrier developed the first successful commercial air conditioner in 1902. His invention significantly improved indoor climate control and led to modern air conditioning systems. 19. Who invented the first successful safety razor? A) King Camp GilletteB) William H. HintonC) James B. SwannD) Jacob Schick Show Answer Correct Answer: A) King Camp GilletteExplanation: King Camp Gillette invented the first successful safety razor in 1901. His design made shaving safer and more convenient with replaceable blades. 20. The invention of the

MCQs on Inventions and Discoveries [Set – 5]

MCQs Static GK, MCQs Inventions and Discoveries

MCQs on Inventions and Discoveries [Set – 5] 1. Who invented the first practical steam-powered locomotive? A) Robert FultonB) Richard TrevithickC) James WattD) George Stephenson Show Answer Correct Answer: D) George StephensonExplanation: George Stephenson built the first successful steam-powered locomotive, named “Locomotion No. 1,” which began service on the Stockton and Darlington Railway in 1825. 2. The invention of the first practical electric battery is credited to: A) Alessandro VoltaB) Michael FaradayC) John DaltonD) Humphry Davy Show Answer Correct Answer: A) Alessandro VoltaExplanation: Alessandro Volta invented the first practical electric battery, known as the voltaic pile, in 1800. It was the first source of continuous electric current and laid the foundation for electrochemistry. 3. Who is credited with inventing the first successful photographic process known as the daguerreotype? A) Louis DaguerreB) Joseph Nicéphore NiépceC) George EastmanD) William Henry Fox Talbot Show Answer Correct Answer: A) Louis DaguerreExplanation: Louis Daguerre developed the daguerreotype process in 1839, which was the first successful method of capturing and reproducing images on a metal plate, marking a significant advancement in photography. 4. The development of the first successful electric fan is attributed to: A) H.H. SchultzB) Philip DiehlC) Thomas EdisonD) Nikola Tesla Show Answer Correct Answer: B) Philip DiehlExplanation: Philip Diehl invented the first successful electric fan in 1882, which was designed to be used in homes and offices, providing a new way to cool indoor spaces. 5. Who invented the first practical mechanical pencil? A) John Isaac HawkinsB) Henry BessemerC) Hyman LipmanD) Joseph Whitworth Show Answer Correct Answer: C) Hyman LipmanExplanation: Hyman Lipman patented the first practical mechanical pencil in 1858, which allowed for the easy replacement of pencil leads and improved the convenience of writing instruments. 6. The invention of the first practical modern car battery is credited to: A) Ferdinand PorscheB) Thomas EdisonC) Albert T. MarshallD) Georges de Mestral Show Answer Correct Answer: B) Thomas EdisonExplanation: Thomas Edison developed the first practical modern car battery in 1912. His design improved the performance and reliability of car batteries, contributing to the advancement of automobiles. 7. Who invented the first successful high-speed printing press? A) Johannes GutenbergB) Richard HoeC) James WattD) Samuel Morse Show Answer Correct Answer: B) Richard HoeExplanation: Richard Hoe invented the rotary printing press in 1843, which allowed for high-speed printing of newspapers and books, revolutionizing the publishing industry. 8. Who invented the first practical electric drill? A) Black & DeckerB) Robert BoschC) Walter SchneelochD) Thomas Edison Show Answer Correct Answer: C) Walter SchneelochExplanation: Walter Schneeloch invented the first practical electric drill in 1895. His design allowed for more efficient drilling in construction and manufacturing processes. 9. The invention of the first successful plastic explosives is credited to: A) Alfred NobelB) Leo BaekelandC) Wallace CarothersD) Charles Goodyear Show Answer Correct Answer: A) Alfred NobelExplanation: Alfred Nobel invented dynamite in 1867, which is a type of plastic explosive. His invention was a major advancement in explosive technology and was used in mining and construction. 10. Who developed the first successful synthetic rubber? A) Charles GoodyearB) Wallace CarothersC) Robert L. WilliamsD) Charles Macintosh Show Answer Correct Answer: B) Wallace CarothersExplanation: Wallace Carothers developed the first successful synthetic rubber, known as neoprene, in the 1930s. His invention had significant industrial applications, including in automotive and construction industries. 11. The first successful solar cell capable of converting sunlight into electricity was developed by: A) Bell LaboratoriesB) Nikola TeslaC) Charles FrittsD) Albert T. Marshall Show Answer Correct Answer: A) Bell LaboratoriesExplanation: Bell Laboratories developed the first practical solar cell in 1954. This solar cell was capable of converting sunlight into electricity with an efficiency of about 6%. 12. Who invented the first practical snowmobile? A) Joseph-Armand BombardierB) Ransom E. OldsC) Charles Franklin KetteringD) Henry Ford Show Answer Correct Answer: A) Joseph-Armand BombardierExplanation: Joseph-Armand Bombardier invented the first practical snowmobile in 1937. His invention greatly improved transportation in snowy and icy conditions. 13. The discovery of the first known element with a stable isotope, uranium, is credited to: A) Antoine Henri BecquerelB) Martin Heinrich KlaprothC) Marie CurieD) Ernest Rutherford Show Answer Correct Answer: B) Martin Heinrich KlaprothExplanation: Martin Heinrich Klaproth discovered uranium in 1789. He was the first to identify and isolate this element, which later became important in nuclear science and energy. 14. Who invented the first practical method for producing steel from molten pig iron? A) Henry BessemerB) Andrew CarnegieC) John ThomasD) William Siemens Show Answer Correct Answer: A) Henry BessemerExplanation: Henry Bessemer invented the Bessemer process in 1856, a method for producing steel from molten pig iron. This process significantly reduced the cost and increased the efficiency of steel production. 15. The invention of the first successful electric toaster is attributed to: A) George SchneiderB) Frank ShailorC) Albert T. MarshallD) Charles Strite Show Answer Correct Answer: D) Charles StriteExplanation: Charles Strite invented the first practical electric toaster, known as the Toastmaster, in 1921. His design made it easy to toast bread automatically. 16. The invention of the first successful practical camera was developed by: A) Joseph Nicéphore NiépceB) George EastmanC) Louis DaguerreD) Henry Fox Talbot Show Answer Correct Answer: C) Louis DaguerreExplanation: Louis Daguerre developed the daguerreotype camera in 1839, which was the first successful practical camera for capturing detailed images on a metal plate. 17. Who invented the first practical radio communication system? A) Guglielmo MarconiB) Alexander Graham BellC) Nikola TeslaD) Heinrich Hertz Show Answer Correct Answer: A) Guglielmo MarconiExplanation: Guglielmo Marconi developed the first practical radio communication system in the late 19th century, enabling wireless transmission of signals over long distances. 18. The development of the first practical aircraft carrier was pioneered by: A) Theodore RooseveltB) John BrownC) Sir Percy ScottD) William H. McRaven Show Answer Correct Answer: B) John BrownExplanation: John Brown was instrumental in the development of the first practical aircraft carrier, which revolutionized naval warfare by providing a mobile base for aircraft. 19. Who invented the first practical automatic telephone switchboard? A) Almon StrowgerB) Elisha GrayC) Thomas EdisonD) Alexander Graham Bell Show Answer Correct Answer: A) Almon StrowgerExplanation: Almon Strowger invented the first practical automatic telephone switchboard in 1891, which automated the process of connecting telephone calls,

MCQs on Inventions and Discoveries [Set – 4]

MCQs Static GK, MCQs Inventions and Discoveries

MCQs on Inventions and Discoveries [Set – 4] 1. Who invented the first successful air conditioning system? A) Willis CarrierB) Nikola TeslaC) James HargreavesD) Robert Goddard Show Answer Correct Answer: A) Willis CarrierExplanation: Willis Carrier invented the first successful air conditioning system in 1902. His invention was initially designed to control humidity and temperature in a printing plant, revolutionizing climate control in buildings. 2. The discovery of the first synthetic dye, mauveine, was made by: A) Robert KochB) Louis PasteurC) Sir William Henry PerkinD) Paul Ehrlich Show Answer Correct Answer: C) Sir William Henry PerkinExplanation: Sir William Henry Perkin discovered the first synthetic dye, mauveine, in 1856 while trying to synthesize quinine. This discovery marked the beginning of the synthetic dye industry. 3. The invention of the first successful mechanical calculator, known as the “Difference Engine,” is attributed to: A) Blaise PascalB) Charles BabbageC) Gottfried Wilhelm LeibnizD) John Napier Show Answer Correct Answer: B) Charles BabbageExplanation: Charles Babbage designed the “Difference Engine” in the 1820s. Although it was not completed during his lifetime, it is considered a precursor to modern computers. 4. Who is credited with the invention of the first practical telephone exchange system? A) Alexander Graham BellB) Elisha GrayC) Thomas EdisonD) Almon Strowger Show Answer Correct Answer: D) Almon StrowgerExplanation: Almon Strowger invented the first practical telephone exchange system in 1891. His invention allowed for automatic switching of telephone calls, leading to the development of modern telecommunication networks. 5. The invention of the first successful typewriter was by: A) Christopher SholesB) Samuel MorseC) Isaac SingerD) Elisha Otis Show Answer Correct Answer: A) Christopher SholesExplanation: Christopher Latham Sholes invented the first successful typewriter in 1868. He also developed the QWERTY keyboard layout, which is still used today. 6. Who is credited with inventing the first practical heart-lung machine used in cardiac surgery? A) Michael DeBakeyB) Christiaan BarnardC) Denton CooleyD) John Gibbon Show Answer Correct Answer: D) John GibbonExplanation: John Gibbon developed the first practical heart-lung machine in 1953, which allowed surgeons to perform open-heart surgery by temporarily taking over the functions of the heart and lungs. 7. The first successful manned spaceflight was accomplished by: A) Yuri GagarinB) Alan ShepardC) Neil ArmstrongD) Valentina Tereshkova Show Answer Correct Answer: A) Yuri GagarinExplanation: Yuri Gagarin became the first human to journey into outer space and orbit the Earth on April 12, 1961, aboard Vostok 1, marking a significant milestone in space exploration. 8. Who is known for inventing the first practical wind turbine for generating electricity? A) James BlythB) Charles BrushC) Daniel HalladayD) George Westinghouse Show Answer Correct Answer: B) Charles BrushExplanation: Charles Brush built the first practical wind turbine for generating electricity in 1888. His wind turbine was one of the earliest examples of harnessing wind power for electricity generation. 9. The invention of the first successful photographic film is attributed to: A) George EastmanB) Louis DaguerreC) Joseph Nicéphore NiépceD) Thomas Edison Show Answer Correct Answer: A) George EastmanExplanation: George Eastman developed the first successful photographic film in 1888, which made photography more accessible to the general public with his Kodak camera. 10. Who invented the first commercially successful computer mouse? A) Douglas EngelbartB) Bill GatesC) Steve JobsD) Alan Turing Show Answer Correct Answer: A) Douglas EngelbartExplanation: Douglas Engelbart invented the first commercially successful computer mouse in 1964. His invention was a key component of his broader work on interactive computing and human-computer interaction. 11. The invention of the first successful synthetic plastic, Bakelite, is credited to: A) Leo BaekelandB) Wallace CarothersC) John Wesley HyattD) James R. McKeen Show Answer Correct Answer: A) Leo BaekelandExplanation: Leo Baekeland invented Bakelite in 1907, the first synthetic plastic. Bakelite was widely used in a variety of applications due to its durability and insulating properties. 12. Who developed the first successful insulin treatment for diabetes? A) Albert CalmetteB) Frederick BantingC) Emil von BehringD) Paul Ehrlich Show Answer Correct Answer: B) Frederick BantingExplanation: Frederick Banting, along with Charles Best, developed the first successful insulin treatment for diabetes in 1921, which has since been crucial for managing diabetes. 13. The development of the first practical jet engine is attributed to: A) Charles LindberghB) Hans von OhainC) Robert H. GoddardD) Frank Whittle Show Answer Correct Answer: D) Frank WhittleExplanation: Frank Whittle developed the first practical jet engine in the 1930s, which was essential for the development of modern jet aircraft. 14. Who invented the first successful electric vacuum cleaner? A) James DysonB) Herbert HooverC) Hubert Cecil BoothD) Ives McGaffey Show Answer Correct Answer: C) Hubert Cecil BoothExplanation: Hubert Cecil Booth invented the first successful electric vacuum cleaner in 1901, which utilized suction to clean floors and carpets more efficiently. 15. The invention of the first successful practical telescope is attributed to: A) Galileo GalileiB) Johannes KeplerC) Isaac NewtonD) Hans Lippershey Show Answer Correct Answer: A) Galileo GalileiExplanation: Galileo Galilei developed one of the first practical telescopes in 1609, which he used to make significant astronomical observations, including the moons of Jupiter. 16. Who is known for the invention of the first commercially successful lithium-ion battery? A) John B. GoodenoughB) Yoshino AkiraC) Stanley WhittinghamD) Michael Faraday Show Answer Correct Answer: B) Yoshino AkiraExplanation: Yoshino Akira developed the first commercially successful lithium-ion battery in the 1980s, which has become widely used in portable electronic devices due to its high energy density and rechargeable capabilities. 17. The development of the first practical personal computer is attributed to: A) Steve JobsB) Bill GatesC) Alan TuringD) Ed Roberts Show Answer Correct Answer: D) Ed RobertsExplanation: Ed Roberts developed the Altair 8800 in 1975, considered the first practical personal computer. Its success led to the rise of the personal computer industry. 18. Who invented the first successful practical submarine used in warfare? A) Robert FultonB) John HollandC) Simon LakeD) David Bushnell Show Answer Correct Answer: B) John HollandExplanation: John Holland designed and built the first successful practical submarine, the USS Holland, which was commissioned by the U.S. Navy in 1900. 19. The development of the first successful electric toaster is credited to: A) George SchneiderB) Frank ShailorC) Charles StriteD) Albert T. Marshall Show Answer Correct Answer: C) Charles StriteExplanation: Charles Strite

MCQs on Inventions and Discoveries [Set – 3]

MCQs Static GK, MCQs Inventions and Discoveries

MCQs on Inventions and Discoveries [Set – 3] 1. Who is credited with the invention of the first practical automobile? A) Karl BenzB) Henry FordC) Gottlieb DaimlerD) Ferdinand Porsche Show Answer Correct Answer: A) Karl BenzExplanation: Karl Benz invented the first practical automobile, the Benz Patent-Motorwagen, in 1885. It was powered by an internal combustion engine and is considered the first true car. 2. Who discovered the law of universal gravitation? A) Galileo GalileiB) Johannes KeplerC) Isaac NewtonD) Albert Einstein Show Answer Correct Answer: C) Isaac NewtonExplanation: Isaac Newton formulated the law of universal gravitation in 1687, stating that every mass attracts every other mass with a force proportional to their masses and inversely proportional to the square of the distance between their centers. 3. The discovery of the planet Neptune is credited to: A) Galileo GalileiB) Johann GalleC) William HerschelD) Clyde Tombaugh Show Answer Correct Answer: B) Johann GalleExplanation: Johann Galle discovered Neptune on September 23, 1846, based on predictions made by Urbain Le Verrier. This discovery confirmed the accuracy of Newtonian mechanics. 4. The first practical photovoltaic (solar) cell was developed by: A) Albert EinsteinB) Charles FrittsC) Bell LaboratoriesD) Thomas Edison Show Answer Correct Answer: C) Bell LaboratoriesExplanation: Bell Laboratories developed the first practical photovoltaic cell in 1954, which could convert sunlight into electricity with an efficiency of around 6%. 5. Who is known as the “Father of Modern Genetics”? A) Charles DarwinB) Francis CrickC) James WatsonD) Gregor Mendel Show Answer Correct Answer: D) Gregor MendelExplanation: Gregor Mendel, an Austrian monk, is known as the “Father of Modern Genetics” for his pioneering work on the inheritance of traits in pea plants, establishing the fundamental laws of heredity. 6. The first successful artificial heart transplant was performed by: A) Michael DeBakeyB) Robert JarvikC) Barney ClarkD) Christiaan Barnard Show Answer Correct Answer: C) Barney ClarkExplanation: Barney Clark was the first person to receive a permanent artificial heart, the Jarvik-7, on December 2, 1982, marking a significant advancement in medical technology. 7. Who invented the first practical sewing machine? A) Elias HoweB) Isaac SingerC) Thomas SaintD) Walter Hunt Show Answer Correct Answer: A) Elias HoweExplanation: Elias Howe invented the first practical sewing machine in 1846, which significantly improved the efficiency and quality of garment production. 8. The discovery of insulin, which is used to treat diabetes, is credited to: A) Frederick Banting and Charles BestB) Louis PasteurC) Edward JennerD) Alexander Fleming Show Answer Correct Answer: A) Frederick Banting and Charles BestExplanation: Frederick Banting and Charles Best discovered insulin in 1921, revolutionizing the treatment of diabetes and saving countless lives. 9. Who invented the first practical vacuum cleaner? A) James DysonB) William HooverC) Hubert Cecil BoothD) Ives McGaffey Show Answer Correct Answer: C) Hubert Cecil BoothExplanation: Hubert Cecil Booth invented the first practical vacuum cleaner in 1901, which used suction to clean floors and carpets. 10. The discovery of the electron is attributed to: A) Niels BohrB) J.J. ThomsonC) Ernest RutherfordD) Albert Einstein Show Answer Correct Answer: B) J.J. ThomsonExplanation: J.J. Thomson discovered the electron in 1897 through his experiments with cathode rays, leading to the development of atomic theory. 11. Who invented the first practical electric refrigerator? A) Thomas EdisonB) Willis CarrierC) Jacob PerkinsD) Albert T. Marshall Show Answer Correct Answer: D) Albert T. MarshallExplanation: Albert T. Marshall invented the first practical electric refrigerator in 1913, which allowed for the preservation of food through cooling. 12. The invention of the electric motor is credited to: A) Michael FaradayB) Nikola TeslaC) Thomas EdisonD) James Watt Show Answer Correct Answer: B) Nikola TeslaExplanation: Nikola Tesla invented the first practical alternating current (AC) electric motor in 1887, which played a crucial role in the widespread adoption of AC electricity. 13. Who discovered the principle of buoyancy, also known as Archimedes’ principle? A) Galileo GalileiB) Isaac NewtonC) ArchimedesD) Leonardo da Vinci Show Answer Correct Answer: C) ArchimedesExplanation: Archimedes discovered the principle of buoyancy in the 3rd century BC, which states that a body submerged in a fluid experiences an upward force equal to the weight of the displaced fluid. 14. The first practical mechanical clock was invented in which century? A) 10th centuryB) 12th centuryC) 14th centuryD) 16th century Show Answer Correct Answer: C) 14th centuryExplanation: The first practical mechanical clocks were developed in the 14th century, leading to more accurate timekeeping and the establishment of public clock towers in Europe. 15. The discovery of the electron microscope, which allows for high-resolution imaging of tiny structures, is credited to: A) Ernst Ruska and Max KnollB) Robert HookeC) Antonie van LeeuwenhoekD) Carl Zeiss Show Answer Correct Answer: A) Ernst Ruska and Max KnollExplanation: Ernst Ruska and Max Knoll developed the first electron microscope in 1931, allowing scientists to observe structures at a much higher resolution than possible with light microscopes. 16. Who discovered the principle of electromagnetic induction, leading to the development of electric generators? A) Nikola TeslaB) Michael FaradayC) James Clerk MaxwellD) Thomas Edison Show Answer Correct Answer: B) Michael FaradayExplanation: Michael Faraday discovered the principle of electromagnetic induction in 1831, which is the fundamental operating principle of electric generators and transformers. 17. Who invented the first practical alternating current (AC) transformer? A) Thomas EdisonB) Nikola TeslaC) William StanleyD) George Westinghouse Show Answer Correct Answer: C) William StanleyExplanation: William Stanley developed the first practical AC transformer in 1885. His work allowed for the efficient transmission of electrical power over long distances, which was crucial for the adoption of AC power systems. 18. Who is credited with inventing the first practical microscope? A) Robert HookeB) Antonie van LeeuwenhoekC) Zacharias JanssenD) Galileo Galilei Show Answer Correct Answer: C) Zacharias JanssenExplanation: Zacharias Janssen is often credited with inventing the first compound microscope around 1590. Although the details are not clear, his early work in microscopy laid the foundation for future developments in the field. 19. Who invented the first practical steam engine? A) James WattB) Thomas NewcomenC) George StephensonD) Robert Fulton Show Answer Correct Answer: B) Thomas NewcomenExplanation: Thomas Newcomen invented the first practical steam engine in 1712, known as the Newcomen atmospheric engine. It was used primarily for pumping water out of mines. 20. The

MCQs on Inventions and Discoveries [Set – 2]

MCQs Static GK, MCQs Inventions and Discoveries

MCQs on Inventions and Discoveries [Set – 2] 1. Who is credited with inventing the first practical electric battery? A) Thomas EdisonB) Alessandro VoltaC) Benjamin FranklinD) Michael Faraday Show Answer Correct Answer: B) Alessandro VoltaExplanation: Alessandro Volta invented the first practical electric battery, known as the voltaic pile, in 1800. This invention provided the first continuous source of electrical current. 2. Who invented the process of pasteurization to kill bacteria in beverages? A) Louis PasteurB) Robert KochC) Joseph ListerD) Alexander Fleming Show Answer Correct Answer: A) Louis PasteurExplanation: Louis Pasteur developed the process of pasteurization in the 19th century. This technique involves heating beverages to a specific temperature to kill harmful bacteria. 3. The microwave oven was invented by: A) Percy SpencerB) Nikola TeslaC) Guglielmo MarconiD) Philo Farnsworth Show Answer Correct Answer: A) Percy SpencerExplanation: Percy Spencer invented the microwave oven in 1945 after discovering that microwaves from a radar magnetron could cook food. 4. Who invented the first successful mechanical reaper for harvesting crops? A) Cyrus McCormickB) John DeereC) Eli WhitneyD) Robert Fulton Show Answer Correct Answer: A) Cyrus McCormickExplanation: Cyrus McCormick invented the first successful mechanical reaper in 1831, which revolutionized agriculture by significantly reducing the labor required for harvesting crops. 5. The first practical typewriter was invented by: A) Christopher SholesB) Thomas EdisonC) Alexander Graham BellD) Samuel Morse Show Answer Correct Answer: A) Christopher SholesExplanation: Christopher Latham Sholes invented the first practical typewriter in 1868. He also developed the QWERTY keyboard layout that is still in use today. 6. Who discovered the circulation of blood in the human body? A) Andreas VesaliusB) GalenC) HippocratesD) William Harvey Show Answer Correct Answer: D) William HarveyExplanation: William Harvey, an English physician, discovered the principles of blood circulation in the human body and published his findings in 1628 in the book “De Motu Cordis.” 7. Who invented the process for making steel from iron, known as the Bessemer process? A) Henry BessemerB) Andrew CarnegieC) John D. RockefellerD) Alfred Krupp Show Answer Correct Answer: A) Henry BessemerExplanation: Henry Bessemer invented the Bessemer process in the 1850s, which allowed for the mass production of steel by removing impurities from iron using blasts of air. 8. The first successful photographic process was developed by: A) Joseph Nicéphore NiépceB) George EastmanC) Louis DaguerreD) Edwin Land Show Answer Correct Answer: C) Louis DaguerreExplanation: Louis Daguerre developed the daguerreotype process in 1839, which was the first commercially successful photographic process. 9. Who is credited with the invention of the telephone? A) Thomas EdisonB) Alexander Graham BellC) Nikola TeslaD) Guglielmo Marconi Show Answer Correct Answer: B) Alexander Graham BellExplanation: Alexander Graham Bell was awarded the first US patent for the invention of the telephone in 1876. He is widely credited with inventing and patenting the first practical telephone. 10. The first successful electronic digital computer, ENIAC, was developed by: A) Alan TuringB) Charles BabbageC) J. Presper Eckert and John MauchlyD) Konrad Zuse Show Answer Correct Answer: C) J. Presper Eckert and John MauchlyExplanation: J. Presper Eckert and John Mauchly designed and built ENIAC (Electronic Numerical Integrator and Computer) in the 1940s, which was the first general-purpose electronic computer. 11. Who invented the first practical phonograph? A) Thomas EdisonB) Alexander Graham BellC) Emile BerlinerD) Nikola Tesla Show Answer Correct Answer: A) Thomas EdisonExplanation: Thomas Edison invented the first practical phonograph in 1877, which could record and reproduce sound. 12. The first successful human-to-human heart transplant was performed by: A) Christiaan BarnardB) Michael DeBakeyC) Denton CooleyD) Charles Drew Show Answer Correct Answer: A) Christiaan BarnardExplanation: Dr. Christiaan Barnard performed the first successful human heart transplant on December 3, 1967, in Cape Town, South Africa, marking a significant milestone in medical history. 13. Who is known as the “Father of Microbiology” for his work with microorganisms? A) Louis PasteurB) Antonie van LeeuwenhoekC) Robert KochD) Alexander Fleming Show Answer Correct Answer: B) Antonie van LeeuwenhoekExplanation: Antonie van Leeuwenhoek is known as the “Father of Microbiology” for his pioneering work in the study of microorganisms using microscopes he crafted himself. 14. The first successful polio vaccine was developed by: A) Jonas SalkB) Albert SabinC) Edward JennerD) Louis Pasteur Show Answer Correct Answer: A) Jonas SalkExplanation: Jonas Salk developed the first successful polio vaccine in 1955, which has played a crucial role in nearly eradicating the disease worldwide. 15. The discovery of the structure of DNA was made by: A) James Watson and Francis CrickB) Rosalind FranklinC) Gregor MendelD) Linus Pauling Show Answer Correct Answer: A) James Watson and Francis CrickExplanation: James Watson and Francis Crick discovered the double helix structure of DNA in 1953, with significant contributions from Rosalind Franklin’s X-ray diffraction images. 16. Who invented the first successful mechanical reaper for harvesting crops? A) Robert FultonB) John DeereC) Eli WhitneyD) Cyrus McCormick Show Answer Correct Answer: D) Cyrus McCormickExplanation: Cyrus McCormick invented the first successful mechanical reaper in 1831, which revolutionized agriculture by significantly reducing the labor required for harvesting crops. 17. The first practical typewriter was invented by: A) Christopher SholesB) Thomas EdisonC) Alexander Graham BellD) Samuel Morse Show Answer Correct Answer: A) Christopher SholesExplanation: Christopher Latham Sholes invented the first practical typewriter in 1868. He also developed the QWERTY keyboard layout that is still in use today. 18. Who is credited with the invention of the electric telegraph? A) Guglielmo MarconiB) Alexander Graham BellC) Samuel MorseD) Nikola Tesla Show Answer Correct Answer: C) Samuel MorseExplanation: Samuel Morse, along with Alfred Vail, developed the electric telegraph in the 1830s and also created Morse code, a method for encoding text information as sequences of signals. 19. The first successful electronic digital computer, ENIAC, was developed by: A) Alan TuringB) Charles BabbageC) J. Presper Eckert and John MauchlyD) Konrad Zuse Show Answer Correct Answer: C) J. Presper Eckert and John MauchlyExplanation: J. Presper Eckert and John Mauchly designed and built ENIAC (Electronic Numerical Integrator and Computer) in the 1940s, which was the first general-purpose electronic computer. 20. Who is credited with inventing the first practical mechanical calculator? A) Charles BabbageB) Blaise PascalC) Gottfried Wilhelm LeibnizD) John Napier Show Answer Correct Answer: B) Blaise PascalExplanation: Blaise Pascal invented the Pascaline, a mechanical calculator,

MCQs on Important Days and Dates [Set – 10]

MCQs Static GK, MCQs Important days and dates

MCQs on Important Days and Dates [Set – 10] 1. Which day is observed as International Day of Peace? A) January 21B) March 21C) June 21D) September 21 Show Answer Correct Answer: D) September 21Explanation: International Day of Peace, observed on September 21, is dedicated to strengthening the ideals of peace, both within and among all nations and peoples. 2. What is the significance of January 4 globally? A) World Braille DayB) World AIDS DayC) World Cancer DayD) World Health Day Show Answer Correct Answer: A) World Braille DayExplanation: World Braille Day, observed on January 4, celebrates the importance of braille as a means of communication for the full realization of human rights for blind and visually impaired people. 3. When is World Kidney Day observed? A) Second Thursday of MarchB) Second Thursday of MayC) Second Thursday of JulyD) Second Thursday of September Show Answer Correct Answer: A) Second Thursday of MarchExplanation: World Kidney Day, observed on the second Thursday of March, aims to raise awareness about the importance of our kidneys to our overall health and reduce the frequency and impact of kidney disease. 4. Which day is celebrated as International Day of Sport for Development and Peace? A) January 6B) March 6C) April 6D) June 6 Show Answer Correct Answer: C) April 6Explanation: International Day of Sport for Development and Peace, observed on April 6, recognizes the power of sport in promoting peace and erasing cultural barriers worldwide. 5. What is celebrated on October 17? A) World Food DayB) International Day for the Eradication of PovertyC) World Refugee DayD) International Literacy Day Show Answer Correct Answer: B) International Day for the Eradication of PovertyExplanation: This day, observed on October 17, promotes awareness of the need to eradicate poverty and destitution worldwide, particularly in developing countries. 6. When is World Day for Safety and Health at Work observed? A) January 28B) March 28C) April 28D) July 28 Show Answer Correct Answer: C) April 28Explanation: World Day for Safety and Health at Work, observed on April 28, focuses on promoting a safe, healthy, and decent work environment. 7. Which day is observed as International Day for the Preservation of the Ozone Layer? A) January 16B) March 16C) June 16D) September 16 Show Answer Correct Answer: D) September 16Explanation: International Day for the Preservation of the Ozone Layer, observed on September 16, commemorates the signing of the Montreal Protocol on Substances that Deplete the Ozone Layer. 8. What is celebrated on November 14? A) World Diabetes DayB) World Cancer DayC) World Refugee DayD) International Literacy Day Show Answer Correct Answer: A) World Diabetes DayExplanation: World Diabetes Day, observed on November 14, raises awareness about diabetes and promotes actions to tackle the disease. 9. When is International Day of the World’s Indigenous Peoples observed? A) January 9B) March 9C) May 9D) August 9 Show Answer Correct Answer: D) August 9Explanation: International Day of the World’s Indigenous Peoples, observed on August 9, raises awareness about the needs of indigenous populations, focusing on the protection of their rights and their participation in decision-making. 10. Which day is celebrated as International Day of Remembrance and Tribute to the Victims of Terrorism? A) January 21B) March 21C) June 21D) August 21 Show Answer Correct Answer: D) August 21Explanation: This day, observed on August 21, honors the memory of victims of terrorism and promotes support for survivors and their families. 11. When is World Pneumonia Day observed? A) January 12B) March 12C) November 12D) September 12 Show Answer Correct Answer: C) November 12Explanation: World Pneumonia Day, observed on November 12, raises awareness about pneumonia, the world’s leading infectious killer of children under five. 12. Which day is observed as International Day of Forests? A) January 21B) March 21C) May 21D) July 21 Show Answer Correct Answer: B) March 21Explanation: International Day of Forests, observed on March 21, celebrates and raises awareness about the importance of all types of forests. 13. What is celebrated on July 30? A) International Day of FriendshipB) World AIDS DayC) World Refugee DayD) International Literacy Day Show Answer Correct Answer: A) International Day of FriendshipExplanation: International Day of Friendship, observed on July 30, promotes the role that friendship plays in promoting peace in many cultures. 14. When is World Day Against Trafficking in Persons observed? A) January 30B) March 30C) June 30D) July 30 Show Answer Correct Answer: D) July 30Explanation: World Day Against Trafficking in Persons, observed on July 30, raises awareness about the plight of human trafficking victims and promotes and protects their rights. 15. Which day is celebrated as International Day of Older Persons? A) January 1B) March 1C) June 1D) October 1 Show Answer Correct Answer: D) October 1Explanation: International Day of Older Persons, observed on October 1, aims to raise awareness about issues affecting the elderly, such as senescence and elder abuse. 16. When is International Day of the Girl Child observed? A) January 11B) March 11C) October 11D) November 11 Show Answer Correct Answer: C) October 11Explanation: International Day of the Girl Child, observed on October 11, focuses on addressing the challenges girls face and promoting girls’ empowerment and the fulfillment of their human rights. 17. What is celebrated on May 3? A) World Press Freedom DayB) World Wildlife DayC) World Tourism DayD) International Women’s Day Show Answer Correct Answer: A) World Press Freedom DayExplanation: World Press Freedom Day, observed on May 3, celebrates the fundamental principles of press freedom, evaluates press freedom around the world, and pays tribute to journalists who have lost their lives in the exercise of their profession. 18. When is World Humanitarian Day observed? A) January 19B) March 19C) August 19D) September 19 Show Answer Correct Answer: C) August 19Explanation: World Humanitarian Day, observed on August 19, pays tribute to aid workers who risk their lives in humanitarian service and rallies support for people affected by crises around the world. 19. When is World Television Day observed? A) January 21B) April 21C) June 21D) November 21 Show Answer Correct Answer: D) November 21Explanation: World Television Day, observed on November 21, recognizes the impact of television on decision-making by bringing attention

MCQs on Important Days and Dates [Set – 9]

MCQs Static GK, MCQs Important days and dates

MCQs on Important Days and Dates [Set – 9] 1. When is World Radio Day celebrated? A) January 13B) February 13C) March 13D) April 13 Show Answer Correct Answer: B) February 13Explanation: World Radio Day, observed on February 13, celebrates radio as a medium and its role in promoting access to information and freedom of expression across cultures. 2. When is World Sight Day observed? A) First Thursday of JanuaryB) First Thursday of MarchC) Second Thursday of OctoberD) First Thursday of December Show Answer Correct Answer: C) Second Thursday of OctoberExplanation: World Sight Day, observed on the second Thursday of October, focuses on global attention on blindness and vision impairment. 3. Which day is observed as International Day of Happiness? A) January 20B) March 20C) May 20D) July 20 Show Answer Correct Answer: B) March 20Explanation: International Day of Happiness, observed on March 20, recognizes the importance of happiness and well-being as universal goals. 4. When is World Day Against Child Labour observed? A) January 12B) March 12C) June 12D) September 12 Show Answer Correct Answer: C) June 12Explanation: World Day Against Child Labour, observed on June 12, focuses on the global extent of child labor and the actions and efforts needed to eliminate it. 5. Which day is celebrated as International Day of Friendship? A) January 30B) March 30C) July 30D) September 30 Show Answer Correct Answer: C) July 30Explanation: International Day of Friendship, observed on July 30, promotes the role that friendship plays in promoting peace in many cultures. 6. What is celebrated on November 10? A) World Science Day for Peace and DevelopmentB) World Television DayC) World Philosophy DayD) International Day for Tolerance Show Answer Correct Answer: A) World Science Day for Peace and DevelopmentExplanation: This day, observed on November 10, highlights the important role of science in society and the need to engage the wider public in debates on emerging scientific issues. 7. When is World Mosquito Day observed? A) January 20B) March 20C) April 20D) August 20 Show Answer Correct Answer: D) August 20Explanation: World Mosquito Day, observed on August 20, commemorates the discovery that female mosquitoes transmit malaria between humans by Sir Ronald Ross in 1897. 8. Which day is observed as World Population Day? A) January 11B) March 11C) July 11D) September 11 Show Answer Correct Answer: C) July 11Explanation: World Population Day, observed on July 11, focuses attention on the urgency and importance of population issues. 9. What is celebrated on December 2? A) World Computer Literacy DayB) World Wildlife DayC) World Health DayD) International Literacy Day Show Answer Correct Answer: A) World Computer Literacy DayExplanation: World Computer Literacy Day, observed on December 2, aims to create awareness and drive digital literacy in underserved communities worldwide. 10. When is International Mother Language Day celebrated? A) January 21B) February 21C) March 21D) April 21 Show Answer Correct Answer: B) February 21Explanation: International Mother Language Day, observed on February 21, promotes linguistic and cultural diversity and multilingualism. 11. Which day is observed as International Day of Cooperatives? A) First Saturday of JanuaryB) First Saturday of MarchC) First Saturday of JulyD) First Saturday of September Show Answer Correct Answer: C) First Saturday of JulyExplanation: International Day of Cooperatives, observed on the first Saturday of July, aims to increase awareness about cooperatives and promote the movement’s ideas of international solidarity, economic efficiency, equality, and world peace. 12. What is the significance of October 2 globally? A) International Day of Non-ViolenceB) World AIDS DayC) International Day of YogaD) World Health Day Show Answer Correct Answer: A) International Day of Non-ViolenceExplanation: This day, observed on October 2, the birthday of Mahatma Gandhi, is dedicated to promoting the principles of non-violence through education and public awareness. 13. When is World Humanitarian Day observed? A) January 19B) March 19C) August 19D) November 19 Show Answer Correct Answer: C) August 19Explanation: World Humanitarian Day, observed on August 19, pays tribute to aid workers who risk their lives in humanitarian service and rallies support for people affected by crises around the world. 14. Which day is celebrated as International Day of Older Persons? A) January 1B) March 1C) June 1D) October 1 Show Answer Correct Answer: D) October 1Explanation: International Day of Older Persons, observed on October 1, aims to raise awareness about issues affecting the elderly, such as senescence and elder abuse. 15. What is celebrated on May 3? A) World Press Freedom DayB) World Wildlife DayC) World Tourism DayD) International Women’s Day Show Answer Correct Answer: A) World Press Freedom DayExplanation: World Press Freedom Day, observed on May 3, celebrates the fundamental principles of press freedom, evaluates press freedom around the world, and pays tribute to journalists who have lost their lives in the exercise of their profession. 16. When is International Migrants Day observed? A) January 18B) March 18C) June 18D) December 18 Show Answer Correct Answer: D) December 18Explanation: International Migrants Day, observed on December 18, recognizes the efforts, contributions, and rights of migrants worldwide. 17. Which day is observed as International Day for Biological Diversity? A) February 22B) April 22C) June 22D) May 22 Show Answer Correct Answer: D) May 22Explanation: International Day for Biological Diversity, observed on May 22, aims to increase understanding and awareness of biodiversity issues. 18. When is International Day for the Elimination of Racial Discrimination observed? A) January 21B) March 21C) May 21D) July 21 Show Answer Correct Answer: B) March 21Explanation: International Day for the Elimination of Racial Discrimination, observed on March 21, commemorates the Sharpeville massacre and focuses on the need to eliminate all forms of racial discrimination. 19. What is celebrated on December 10? A) World AIDS DayB) Human Rights DayC) World Cancer DayD) International Literacy Day Show Answer Correct Answer: B) Human Rights DayExplanation: Human Rights Day, observed on December 10, marks the anniversary of the adoption of the Universal Declaration of Human Rights by the United Nations General Assembly in 1948. 20. When is World Maritime Day observed? A) Last Thursday of FebruaryB) Last Thursday of AprilC) Last Thursday of SeptemberD) Last Thursday of November Show Answer Correct Answer: C) Last Thursday of SeptemberExplanation: World Maritime

MCQs on Important Days and Dates [Set – 8]

MCQs Static GK, MCQs Important days and dates

MCQs on Important Days and Dates [Set – 8] 1. What is celebrated on November 19? A) World Diabetes DayB) International Men’s DayC) International Women’s DayD) World Environment Day Show Answer Correct Answer: B) International Men’s DayExplanation: International Men’s Day, observed on November 19, focuses on men’s health, improving gender relations, and promoting positive male role models. 2. When is International Day of Education observed? A) January 24B) March 24C) May 24D) July 24 Show Answer Correct Answer: A) January 24Explanation: International Day of Education, observed on January 24, celebrates the role of education for peace and development and emphasizes the importance of inclusive and equitable quality education. 3. Which day is celebrated as World Tuberculosis Day? A) January 24B) March 24C) May 24D) July 24 Show Answer Correct Answer: B) March 24Explanation: World Tuberculosis Day, observed on March 24, aims to raise public awareness about the devastating health, social, and economic consequences of tuberculosis and to step up efforts to end the global TB epidemic. 4. What is the significance of July 28 globally? A) World Hepatitis DayB) World AIDS DayC) World Malaria DayD) World Health Day Show Answer Correct Answer: A) World Hepatitis DayExplanation: World Hepatitis Day, observed on July 28, aims to raise global awareness of hepatitis and encourage prevention, diagnosis, and treatment. 5. When is International Day of Sign Languages celebrated? A) January 23B) March 23C) June 23D) September 23 Show Answer Correct Answer: D) September 23Explanation: International Day of Sign Languages, observed on September 23, promotes the use of sign languages and raises awareness about the importance of sign language in the full realization of the human rights of people who are deaf. 6. Which day is observed as World Osteoporosis Day? A) January 20B) March 20C) June 20D) October 20 Show Answer Correct Answer: D) October 20Explanation: World Osteoporosis Day, observed on October 20, aims to raise global awareness about the prevention, diagnosis, and treatment of osteoporosis and metabolic bone disease. 7. What is celebrated on August 23? A) International Day for the Remembrance of the Slave Trade and its AbolitionB) World Health DayC) World Refugee DayD) International Literacy Day Show Answer Correct Answer: A) International Day for the Remembrance of the Slave Trade and its AbolitionExplanation: International Day for the Remembrance of the Slave Trade and its Abolition, observed on August 23, marks the anniversary of the start of the Haitian Revolution and aims to inscribe the tragedy of the slave trade in the memory of all peoples. 8. When is World Post Day observed? A) January 9B) March 9C) June 9D) October 9 Show Answer Correct Answer: D) October 9Explanation: World Post Day, observed on October 9, marks the anniversary of the Universal Postal Union’s establishment in 1874 and aims to raise awareness about the role of the postal sector in people’s lives and businesses. 9. Which day is celebrated as International Day of Light? A) February 16B) May 16C) July 16D) October 16 Show Answer Correct Answer: B) May 16Explanation: International Day of Light, observed on May 16, celebrates the role light plays in science, culture, and art, as well as in education, sustainable development, and in fields as diverse as medicine, communications, and energy. 10. What is the significance of November 21 globally? A) World Fisheries DayB) World AIDS DayC) World Cancer DayD) World Refugee Day Show Answer Correct Answer: A) World Fisheries DayExplanation: World Fisheries Day, observed on November 21, highlights the importance of healthy ocean ecosystems and ensures sustainable stocks of fisheries in the world. 11. When is International Day of Women and Girls in Science observed? A) January 11B) March 11C) May 11D) February 11 Show Answer Correct Answer: D) February 11Explanation: International Day of Women and Girls in Science, observed on February 11, aims to achieve full and equal access to and participation in science for women and girls, and further achieve gender equality and the empowerment of women and girls. 12. Which day is observed as International Day of Cooperatives? A) First Saturday of JanuaryB) First Saturday of MarchC) First Saturday of JulyD) First Saturday of September Show Answer Correct Answer: C) First Saturday of JulyExplanation: International Day of Cooperatives, observed on the first Saturday of July, aims to increase awareness about cooperatives and promote the movement’s ideas of international solidarity, economic efficiency, equality, and world peace. 13. What is celebrated on October 15? A) World Teachers’ DayB) World Students’ DayC) World Health DayD) World Environment Day Show Answer Correct Answer: B) World Students’ DayExplanation: World Students’ Day, observed on October 15, celebrates the birth anniversary of Dr. APJ Abdul Kalam, the former President of India, who was also a renowned scientist and teacher. 14. When is World Wildlife Day observed? A) January 3B) March 3C) May 3D) July 3 Show Answer Correct Answer: B) March 3Explanation: World Wildlife Day, observed on March 3, celebrates and raises awareness of the world’s wild fauna and flora. 15. Which day is celebrated as International Day of the Seafarer? A) January 25B) March 25C) June 25D) August 25 Show Answer Correct Answer: C) June 25Explanation: International Day of the Seafarer, observed on June 25, recognizes the invaluable contribution seafarers make to international trade and the world economy, often at great personal cost. 16. What is the significance of February 6 globally? A) World Cancer DayB) International Day of Zero Tolerance for Female Genital MutilationC) World AIDS DayD) World Health Day Show Answer Correct Answer: B) International Day of Zero Tolerance for Female Genital MutilationExplanation: International Day of Zero Tolerance for Female Genital Mutilation, observed on February 6, aims to eradicate female genital mutilation and to support women and girls who have undergone this practice. 17. When is World Food Safety Day observed? A) February 7B) March 7C) June 7D) August 7 Show Answer Correct Answer: C) June 7Explanation: World Food Safety Day, observed on June 7, aims to draw attention and inspire action to help prevent, detect, and manage foodborne risks, contributing to food security, human health, economic prosperity, agriculture, market access, tourism, and sustainable development. 18. Which day is celebrated as International

MCQs on Important Days and Dates [Set – 7]

MCQs Static GK, MCQs Important days and dates

MCQs on Important Days and Dates [Set – 7] 1. When is International Literacy Day celebrated? A) January 8B) March 8C) September 8D) November 8 Show Answer Correct Answer: C) September 8Explanation: International Literacy Day, observed on September 8, aims to highlight the importance of literacy for individuals, communities, and societies, and the need for intensified efforts towards more literate societies. 2. What is the significance of October 24 globally? A) United Nations DayB) World Food DayC) World Environment DayD) World AIDS Day Show Answer Correct Answer: A) United Nations DayExplanation: United Nations Day, observed on October 24, marks the anniversary of the entry into force of the UN Charter in 1945. It celebrates the work and achievements of the United Nations. 3. When is World Tourism Day observed? A) January 27B) March 27C) May 27D) September 27 Show Answer Correct Answer: D) September 27Explanation: World Tourism Day, observed on September 27, aims to raise awareness about the role of tourism within the international community and to demonstrate how it affects social, cultural, political, and economic values worldwide. 4. Which day is celebrated as International Day of the Girl Child? A) January 11B) March 11C) July 11D) October 11 Show Answer Correct Answer: D) October 11Explanation: International Day of the Girl Child, observed on October 11, focuses on addressing the needs and challenges girls face, while promoting girls’ empowerment and the fulfillment of their human rights. 5. What is celebrated on November 10? A) World Wildlife DayB) World Health DayC) World Science Day for Peace and DevelopmentD) World Refugee Day Show Answer Correct Answer: C) World Science Day for Peace and DevelopmentExplanation: World Science Day for Peace and Development, observed on November 10, highlights the important role of science in society and the need to engage the wider public in debates on emerging scientific issues. 6. When is International Day for the Eradication of Poverty observed? A) January 17B) March 17C) May 17D) October 17 Show Answer Correct Answer: D) October 17Explanation: International Day for the Eradication of Poverty, observed on October 17, promotes awareness about the need to eradicate poverty worldwide, particularly in developing countries. 7. Which day is observed as World AIDS Day? A) January 1B) March 1C) September 1D) December 1 Show Answer Correct Answer: D) December 1Explanation: World AIDS Day, observed on December 1, raises awareness about HIV/AIDS and mourns those who have died of the disease. It also highlights the importance of education and prevention measures. 8. What is the significance of June 8 globally? A) World Oceans DayB) World Health DayC) World AIDS DayD) World Cancer Day Show Answer Correct Answer: A) World Oceans DayExplanation: World Oceans Day, observed on June 8, aims to raise awareness about the importance of oceans, their role in sustaining life on Earth, and the need to protect marine environments. 9. When is International Human Solidarity Day celebrated? A) January 20B) October 20C) December 20D) June 20 Show Answer Correct Answer: C) December 20Explanation: International Human Solidarity Day, observed on December 20, celebrates unity in diversity and promotes the importance of solidarity in achieving international development goals. 10. Which day is celebrated as World Meteorological Day? A) January 23B) March 23C) May 23D) July 23 Show Answer Correct Answer: B) March 23Explanation: World Meteorological Day, observed on March 23, commemorates the establishment of the World Meteorological Organization and highlights the importance of meteorology and weather forecasting. 11. What is celebrated on August 12? A) International Youth DayB) World Health DayC) World AIDS DayD) International Literacy Day Show Answer Correct Answer: A) International Youth DayExplanation: International Youth Day, observed on August 12, raises awareness about the issues affecting young people and promotes the engagement of youth in social and political matters. 12. When is World Water Day observed? A) January 22B) March 22C) May 22D) July 22 Show Answer Correct Answer: B) March 22Explanation: World Water Day, observed on March 22, focuses on the importance of freshwater and advocates for sustainable management of freshwater resources. 13. Which day is observed as World Press Freedom Day? A) January 3B) March 3C) May 3D) July 3 Show Answer Correct Answer: C) May 3Explanation: World Press Freedom Day, observed on May 3, celebrates the fundamental principles of press freedom, evaluates press freedom around the world, and pays tribute to journalists who have lost their lives in the exercise of their profession. 14. What is the significance of September 29 globally? A) World Heart DayB) World Health DayC) World AIDS DayD) World Refugee Day Show Answer Correct Answer: D) World Toilet DayExplanation: World Toilet Day, observed on November 19, aims to raise awareness about the global sanitation crisis and the importance of improving access to clean and safe toilets. 15. When is International Day of Peace celebrated? A) January 21B) March 21C) May 21D) September 21 Show Answer Correct Answer: D) September 21Explanation: International Day of Peace, observed on September 21, is dedicated to promoting peace and non-violence worldwide. 16. What is celebrated on April 25? A) World Malaria DayB) World Health DayC) World AIDS DayD) World Refugee Day Show Answer Correct Answer: A) World Malaria DayExplanation: World Malaria Day, observed on April 25, aims to raise awareness about malaria, its prevention, and control measures. 17. When is International Day of Happiness observed? A) February 20B) March 20C) April 20D) May 20 Show Answer Correct Answer: B) March 20Explanation: International Day of Happiness, observed on March 20, recognizes the importance of happiness and well-being as universal goals and aspirations in people’s lives. 18. Which day is celebrated as International Day of Democracy? A) January 15B) March 15C) June 15D) September 15 Show Answer Correct Answer: D) September 15Explanation: International Day of Democracy, observed on September 15, promotes and upholds the principles of democracy and encourages governments to respect their citizens’ rights to freedom and civil liberties. 19. What is the significance of October 10 globally? A) World Health DayB) World Mental Health DayC) World Environment DayD) World AIDS Day Show Answer Correct Answer: B) World Mental Health DayExplanation: World Mental Health Day, observed on October 10, aims to raise awareness about mental

MCQs on Important Days and Dates [Set – 6]

MCQs Static GK, MCQs Important days and dates

MCQs on Important Days and Dates [Set – 6] 1. When is International Day of Families celebrated? A) January 15B) March 15C) May 15D) July 15 Show Answer Correct Answer: C) May 15Explanation: International Day of Families, observed on May 15, highlights the importance of families and the role they play in promoting education, peace, and sustainable development. 2. What is the significance of August 9 globally? A) World Youth DayB) International Day of the World’s Indigenous PeoplesC) World Refugee DayD) International Literacy Day Show Answer Correct Answer: B) International Day of the World’s Indigenous PeoplesExplanation: International Day of the World’s Indigenous Peoples, observed on August 9, raises awareness about the rights of indigenous peoples and recognizes their contributions to cultural diversity and environmental sustainability. 3. When is World Humanitarian Day observed? A) January 19B) March 19C) June 19D) August 19 Show Answer Correct Answer: D) August 19Explanation: World Humanitarian Day, observed on August 19, pays tribute to humanitarian workers who risk their lives in humanitarian service and advocates for the support of people affected by crises. 4. Which day is celebrated as World Milk Day? A) January 1B) March 1C) May 1D) June 1 Show Answer Correct Answer: D) June 1Explanation: World Milk Day, observed on June 1, raises awareness about the importance of milk as a global food and celebrates the dairy sector. 5. What is celebrated on July 12? A) World Malaria DayB) International Youth DayC) World Hepatitis DayD) World Population Day Show Answer Correct Answer: C) World Hepatitis DayExplanation: World Hepatitis Day, observed on July 28, aims to raise awareness about viral hepatitis and encourage prevention, diagnosis, and treatment. 6. When is World Sight Day celebrated? A) Second Thursday of OctoberB) Third Thursday of NovemberC) Fourth Thursday of DecemberD) Last Thursday of January Show Answer Correct Answer: A) Second Thursday of OctoberExplanation: World Sight Day, observed on the second Thursday of October, aims to focus global attention on blindness and vision impairment. 7. Which day is observed as International Day of Older Persons? A) January 1B) March 1C) July 1D) October 1 Show Answer Correct Answer: D) October 1Explanation: International Day of Older Persons, observed on October 1, raises awareness about the challenges and contributions of older people and promotes their rights and well-being. 8. What is the significance of December 3 globally? A) World Environment DayB) International Day of Persons with DisabilitiesC) World Health DayD) International Literacy Day Show Answer Correct Answer: B) International Day of Persons with DisabilitiesExplanation: International Day of Persons with Disabilities, observed on December 3, promotes the rights and well-being of persons with disabilities and raises awareness about their contributions to society. 9. When is International Day for Biological Diversity celebrated? A) January 22B) March 22C) May 22D) July 22 Show Answer Correct Answer: C) May 22Explanation: International Day for Biological Diversity, observed on May 22, raises awareness about biodiversity issues and promotes actions to protect biological diversity. 10. Which day is celebrated as World Tsunami Awareness Day? A) January 5B) March 5C) May 5D) November 5 Show Answer Correct Answer: D) November 5Explanation: World Tsunami Awareness Day, observed on November 5, aims to raise awareness about the dangers of tsunamis and promote measures to reduce their impact. 11. What is celebrated on October 10? A) World Health DayB) World Mental Health DayC) World Environment DayD) World AIDS Day Show Answer Correct Answer: B) World Mental Health DayExplanation: World Mental Health Day, observed on October 10, aims to raise awareness about mental health issues and mobilize efforts to support mental health. 12. When is World Habitat Day celebrated? A) First Monday of OctoberB) Second Tuesday of NovemberC) Third Wednesday of SeptemberD) Last Thursday of August Show Answer Correct Answer: A) First Monday of OctoberExplanation: World Habitat Day, observed on the first Monday of October, focuses on the state of human settlements and the basic right of all to adequate shelter. 13. Which day is observed as World Oceans Day? A) January 8B) March 8C) June 8D) August 8 Show Answer Correct Answer: C) June 8Explanation: World Oceans Day, observed on June 8, raises awareness about the importance of oceans and promotes actions to protect marine environments. 14. What is the significance of April 7 globally? A) World Health DayB) World Environment DayC) World AIDS DayD) World Refugee Day Show Answer Correct Answer: A) World Health DayExplanation: World Health Day, observed on April 7, marks the founding of the World Health Organization (WHO) and highlights a specific health theme each year to draw attention to global health concerns. 15. When is International Day for the Elimination of Violence Against Women celebrated? A) January 25B) March 25C) July 25D) November 25 Show Answer Correct Answer: D) November 25Explanation: International Day for the Elimination of Violence Against Women, observed on November 25, aims to raise awareness about violence against women and promote actions to end gender-based violence. 16. Which day is celebrated as International Day of Peace? A) January 21B) March 21C) May 21D) September 21 Show Answer Correct Answer: D) September 21Explanation: International Day of Peace, observed on September 21, is dedicated to promoting peace and non-violence worldwide. 17. What is celebrated on June 26? A) World Food DayB) International Day Against Drug Abuse and Illicit TraffickingC) World AIDS DayD) International Literacy Day Show Answer Correct Answer: B) International Day Against Drug Abuse and Illicit TraffickingExplanation: International Day Against Drug Abuse and Illicit Trafficking, observed on June 26, aims to raise awareness about the major problem that illicit drugs represent to society and promote efforts to combat drug abuse and trafficking. 18. When is International Day of Forests observed? A) January 21B) March 21C) May 21D) July 21 Show Answer Correct Answer: B) March 21Explanation: International Day of Forests, observed on March 21, raises awareness about the importance of forests and promotes actions to protect and sustainably manage forest ecosystems. 19. Which day is celebrated as World Cancer Day? A) December 4B) January 4C) February 4D) April 4 Show Answer Correct Answer: C) February 4Explanation: World Cancer Day, observed on February 4, aims to raise awareness about cancer, its prevention, detection,

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