MCQs on Science and Technology

[Set - 4]

1. What was the main objective of the “Parker Solar Probe” mission?

A) To measure the solar wind
B) To study Jupiter’s rings
C) To map the Moon’s surface
D) To explore asteroids

Correct Answer: A) To measure the solar wind
Explanation: The Parker Solar Probe is designed to study the Sun’s outer atmosphere and measure solar wind properties up close.

2. Which spacecraft successfully landed on the asteroid Bennu to collect samples?

A) OSIRIS-REx
B) Hayabusa2
C) Rosetta
D) Stardust

Correct Answer: A) OSIRIS-REx
Explanation: OSIRIS-REx landed on asteroid Bennu to collect samples, which are expected to return to Earth for analysis.

3. What is the purpose of the "SpaceX Starship" vehicle?

A) To service the ISS
B) To conduct lunar landings
C) To enable interplanetary travel
D) To launch satellites

Correct Answer: C) To enable interplanetary travel
Explanation: SpaceX’s Starship is designed for interplanetary travel, with ambitions to transport humans to Mars and beyond.

4. Which mission is known for successfully landing on a comet?

A) Voyager 2
B) Rosetta
C) New Horizons
D) Cassini

Correct Answer: B) Rosetta
Explanation: The Rosetta mission successfully landed the Philae lander on comet 67P/Churyumov–Gerasimenko, providing valuable data on cometary composition.

5. Which satellite is known for providing real-time weather updates and disaster monitoring?

A) Hubble
B) GOES
C) Spitzer
D) Chandra

Correct Answer: B) GOES
Explanation: The Geostationary Operational Environmental Satellites (GOES) provide real-time weather updates and disaster monitoring from geostationary orbit.

6. Which recent mission aimed to explore the asteroid Ryugu and return samples to Earth?

A) OSIRIS-REx
B) Rosetta
C) Hayabusa2
D) Deep Impact

Correct Answer: C) Hayabusa2
Explanation: The Hayabusa2 mission, led by JAXA, explored the asteroid Ryugu and successfully returned samples to Earth for analysis.

7. What is the purpose of the "ROSETTA" mission?

A) To explore a comet
B) To map the Moon
C) To study Jupiter
D) To observe distant galaxies

Correct Answer: A) To explore a comet
Explanation: The ROSETTA mission aimed to explore comet 67P/Churyumov–Gerasimenko and deploy the Philae lander on its surface.

8. Which recent technology has been used for detecting exoplanets via gravitational microlensing?

A) Kepler Space Telescope
B) TESS
C) OGLE
D) Gaia

Correct Answer: C) OGLE
Explanation: The Optical Gravitational Lensing Experiment (OGLE) has been used to detect exoplanets through gravitational microlensing.

9. Which technology is used to simulate microgravity environments for space research?

A) Parabolic flight
B) Vacuum chambers
C) Centrifuges
D) Cryostats

Correct Answer: A) Parabolic flight
Explanation: Parabolic flight provides a microgravity environment for short periods, simulating space conditions for research and experiments.

10. Which satellite mission is known for mapping the Earth's gravitational field in detail?

A) GOES
B) GRACE
C) Landsat
D) Terra

Correct Answer: B) GRACE
Explanation: The Gravity Recovery and Climate Experiment (GRACE) mission maps Earth’s gravitational field and studies variations in water and ice distribution.

11. What is the main purpose of the "Gaia" mission?

A) To study exoplanets
B) To observe cosmic microwave background
C) To map the Milky Way galaxy
D) To explore asteroids

Correct Answer: C) To map the Milky Way galaxy
Explanation: The Gaia mission aims to create a detailed three-dimensional map of the Milky Way galaxy, including the positions and motions of stars.

12. Which mission is focused on studying the effects of solar wind on planetary atmospheres?

A) MAVEN
B) Juno
C) New Horizons
D) Cassini

Correct Answer: A) MAVEN
Explanation: The Mars Atmosphere and Volatile Evolution (MAVEN) mission studies how solar wind affects Mars’ atmosphere and climate.

13. Which mission was responsible for studying Saturn and its moons, including the magnetic field and subsurface ocean of Enceladus?

A) Cassini
B) Voyager 2
C) Juno
D) Galileo

Correct Answer: A) Cassini
Explanation: The Cassini mission studied Saturn and its moons, including the magnetic field and subsurface ocean of Enceladus.

14. Which technology is used to explore the interiors of distant planets and moons?

A) Magnetometers
B) Spectrometers
C) Seismometers
D) Imaging cameras

Correct Answer: C) Seismometers
Explanation: Seismometers, such as those used in missions like InSight, explore the interiors of planets and moons by measuring seismic activity.

15. Which recent advancement allows for improved imaging of distant exoplanets?

A) Spectrographs
B) Adaptive optics
C) Space-based interferometry
D) Coronagraphs

Correct Answer: D) Coronagraphs
Explanation: Coronagraphs block out starlight, allowing for improved imaging of distant exoplanets and their atmospheres by reducing the glare from their parent stars.

16. What technology is used to explore the Moon's surface and search for water ice deposits?

A) Lunar rovers
B) Orbital spectrometers
C) Lunar landers
D) High-resolution imaging satellites

Correct Answer: B) Orbital spectrometers
Explanation: Orbital spectrometers detect water ice deposits on the Moon’s surface by analyzing reflected sunlight and identifying water signatures.

17. Which space mission is known for studying the structure and dynamics of Jupiter's magnetic field?

A) Voyager 1
B) Galileo
C) Juno
D) Cassini

Correct Answer: C) Juno
Explanation: The Juno mission studies Jupiter’s magnetic field, providing insights into its structure and dynamics through detailed observations.

18. Which space mission aims to explore the possibility of life on Mars by analyzing soil samples?

A) Mars Odyssey
B) Spirit
C) Curiosity
D) Opportunity

Correct Answer: C) Curiosity
Explanation: The Curiosity rover analyzes soil samples on Mars to search for signs of past life and understand the planet’s habitability.

19. Which mission provided the first direct evidence of water on the Moon's surface?

A) Lunar Reconnaissance Orbiter
B) Chandrayaan-1
C) Apollo 11
D) Chang’e 5

Correct Answer: B) Chandrayaan-1
Explanation: Chandrayaan-1 provided the first direct evidence of water molecules on the Moon’s surface, significantly impacting lunar exploration.

20. Which technology is used to analyze the magnetic fields of distant astronomical objects?

A) Magnetometers
B) Spectrometers
C) Radio telescopes
D) Gamma-ray detectors

Correct Answer: A) Magnetometers
Explanation: Magnetometers measure the magnetic fields of distant astronomical objects, providing data on their magnetic environments and interactions.

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