MCQs on Science and Technology

[Set - 2]

1. Which technology is utilized for 'voice recognition' systems?

A) Natural Language Processing (NLP)
B) Augmented Reality (AR)
C) Blockchain
D) Internet of Things (IoT)

Correct Answer: A) Natural Language Processing (NLP)
Explanation: Natural Language Processing (NLP) is used in voice recognition systems to interpret and understand spoken language.

2. Which device is used to measure the intensity of earthquakes?

A) Accelerometer
B) Thermometer
C) Barometer
D) Seismograph

Correct Answer: D) Seismograph
Explanation: A seismograph measures and records the intensity and duration of seismic waves generated by earthquakes.

3. Which company is known for the development of the 'HoloLens' mixed reality device?

A) Google
B) Microsoft
C) Apple
D) IBM

Correct Answer: B) Microsoft
Explanation: Microsoft developed the HoloLens, a mixed reality device that blends virtual elements with the real world for immersive experiences.

4. Which technology is used to store and process data in a decentralized manner across a network?

A) Edge computing
B) Cloud computing
C) Blockchain
D) Quantum computing

Correct Answer: C) Blockchain
Explanation: Blockchain technology stores and processes data in a decentralized manner, ensuring transparency and security across a network.

5. Which device is used to determine the chemical composition of a sample by analyzing the light it emits or absorbs?

A) Microscope
B) Chromatograph
C) Spectrometer
D) Oscilloscope

Correct Answer: C) Spectrometer
Explanation: A spectrometer analyzes the light emitted or absorbed by a sample to determine its chemical composition.

6. Which space probe was the first to provide detailed images of the outer planets in our solar system?

A) Voyager 1
B) Cassini
C) New Horizons
D) Juno

Correct Answer: A) Voyager 1
Explanation: Voyager 1 was the first space probe to provide detailed images of the outer planets, including Jupiter and Saturn.

7. Which technology is used to enhance image resolution and detail in digital photography?

A) High Dynamic Range (HDR)
B) Optical Zoom
C) Digital Signal Processing
D) Color Correction

Correct Answer: A) High Dynamic Range (HDR)
Explanation: High Dynamic Range (HDR) technology enhances image resolution and detail by capturing a wider range of brightness levels.

8. Which device is used to amplify weak electrical signals?

A) Resistor
B) Capacitor
C) Transistor
D) Diode

Correct Answer: C) Transistor
Explanation: A transistor is used to amplify weak electrical signals and is a fundamental component in electronic circuits.

9. Which technology is used for 'real-time communication' in mobile applications?

A) SMTP
B) HTTP
C) FTP
D) WebSockets

Correct Answer: D) WebSockets
Explanation: WebSockets enable real-time communication between clients and servers, making them ideal for applications that require instant data exchange.

10. What is the primary application of 'femtotechnology'?

A) Improving network bandwidth
B) Enhancing large-scale data storage
C) Manipulating matter at the atomic scale
D) Developing new chemical compounds

Correct Answer: C) Manipulating matter at the atomic scale
Explanation: Femtotechnology involves manipulating matter at the atomic or subatomic scale, enabling advanced material and device creation.

11. Which company is known for pioneering the development of the 'Graphene' material?

A) IBM
B) MIT
C) University of Manchester
D) Stanford University

Correct Answer: C) University of Manchester
Explanation: The University of Manchester is known for pioneering the development and research of graphene, a material with exceptional electrical and mechanical properties.

12. Which technology is widely used for high-definition video content creation and broadcasting?

A) HD-Television
B) 4K Resolution
C) 1080p Display
D) Ultra High Definition 

Correct Answer: D) Ultra High Definition 
Explanation: Ultra High Definition (UHD) provides significantly higher resolution and detail compared to HD-Television and 1080p Display, making it ideal for high-definition video content.

13. Which technology is used to create digital replicas of physical objects for virtual environments?

A) 3D scanning
B) MRI imaging
C) Ultrasonography
D) X-ray diffraction

Correct Answer: A) 3D scanning
Explanation: 3D scanning technology creates digital replicas of physical objects, allowing them to be used in virtual environments.

14. Which tech giant recently introduced a new artificial intelligence tool designed to combat misinformation online?

A) Facebook
B) Google
C) Amazon
D) Twitter

Correct Answer: B) Google
Explanation: Google introduced an AI tool aimed at identifying and combating misinformation, enhancing the credibility of online information.

15. Which recent mission aims to explore the surface of Venus for the first time in over 30 years?

A) NASA’s VERITAS
B) ESA’s Venus Express
C) Roscosmos’ Venera-D
D) ISRO’s Shukrayaan

Correct Answer: A) NASA’s VERITAS
Explanation: NASA’s VERITAS mission is set to explore Venus’ surface, providing new insights into its geology and climate.

16. Which recent satellite launch is expected to provide global high-speed internet access to remote areas?

A) OneWeb’s constellation
B) Amazon’s Project Kuiper
C) SpaceX’s Starlink
D) Telesat’s LEO satellites

Correct Answer: C) SpaceX’s Starlink
Explanation: SpaceX’s Starlink project aims to deploy a large constellation of satellites to deliver high-speed internet to underserved and remote regions.

17. Which company recently achieved a major milestone in the development of autonomous shipping vessels?

A) Maersk
B) Royal Caribbean
C) Tesla
D) Google

Correct Answer: A) Maersk
Explanation: Maersk achieved a significant milestone with the development of autonomous shipping vessels, paving the way for more efficient maritime logistics.

18. Which spacecraft was the first to land on the surface of Mars?

A) Opportunity
B) Curiosity
C) Spirit
D) Viking 1

Correct Answer: D) Viking 1
Explanation: Viking 1 was the first spacecraft to successfully land on Mars in 1976, marking a significant milestone in Mars exploration.

19. Which planet in our solar system is known for having the most extensive ring system?

A) Jupiter
B) Saturn
C) Uranus
D) Neptune

Correct Answer: B) Saturn
Explanation: Saturn is renowned for its extensive and prominent ring system, which is the most developed in our solar system.

20. What is the name of the first artificial satellite launched into space?

A) Sputnik 1
B) Explorer 1
C) Vanguard 1
D) Hubble 1

Correct Answer: A) Sputnik 1
Explanation: Sputnik 1 was the first artificial satellite launched into space by the Soviet Union in 1957, marking the beginning of the space age.

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