TEST 02: SCIENCE & TECHNOLOGY

Syllabus: Space Technology

1.ISROSENE’, recently in the news, refers to

A. A handheld (portable device) for the detection of adulteration in PDS kerosene.

B. The latest innovation in road construction technology involving the utilisation of dry solid waste

C. Rocket-grade kerosene

D. None of the above.

Answer: C

• ISRO has successfully developed ISROSENE, which is a rocket grade version of kerosene as an alternative to conventional hydrazine rocket fuel.

2.‘Ryugu’, a term recently seen in the news, is an

A. Asteroid

B. Altcoin

C. Endangered coral species

D. Iceberg

Answer: A

• Japan’s Hayabusa-2 spacecraft despatched a pair of “rovers” to the 1km-wide space rock known as Ryugu. Hayabusa-2 recently became the first spacecraft to successfully place robot rovers on the surface of an asteroid.

• Rover 1A and Rover 1B will move around by hopping in Ryugu’s low gravity; they will capture images of the surface and measure temperatures. The 1km-wide space rock known formally as 162173 Ryugu belongs to a particular primitive type of asteroid and is, therefore, a relic left over from the early days of our Solar System. Studying it could shed light on the origin and evolution of our own planet

3. ISRO’s ‘Rohini’ series of rockets are classified as

A. Sounding Rockets

B. Augmented Satellite Launch Vehicles

C. Polar Satellite Launch Vehicles

D. Reusable Launch Vehicles

Answer: A

• Sounding rockets are one or two-stage solid propellant rockets used for probing the upper atmospheric regions and for space research. They also serve as easily affordable platforms to test or prove prototypes of new components or subsystems intended for use in launch vehicles and satellites.

4. Robotic spacecrafts -Pioneer 11, Voyager 1 and Voyager 2 are associated with?

1. Studying the rings of Saturn

2. Extraterrestrial communication in space

3. Studying the asteroids in Jupiter

4. Study mars

A. Both 1 and 3

B. 2 only

C. 4 only

D. 1 only

Answer: A

5. Yutu 2 is Lunar Rover of ?

A. China

B. Japan

C. South Korea

D. North Korea

Answer: A

6. ‘Seven minutes of terror’, a phrase only sometimes seen in the news, is endured by

A. Martian landers

B. The International Space Station

C. Astronauts returning to earth

D. None of the above

Answer: A

7. Consider the following statements with reference to ‘Gaganyaan Mission’:

1. It will be India’s first human spaceflight mission into the space.

2. It will be launched through GSLV-MkIII launch vehicle.

3. The mission aims to send a three-member crew to space for a period of five to seven days.

Which of the statements given above is/are correct?

A. 1 only

B. 1 and 3 only

C. 2 and 3 only

D. 1, 2 and 3

Answer: D

• Gaganyaan Mission was announced in the Independence Day speech of PM. ISRO will be sending its first human spaceflight mission into the space by 2022. GSLV Mk-III launch vehicle will be used to launch Gaganyaan.

• Two unmanned Gaganyaan missions will be undertaken prior to sending humans, with first unmanned flight within 30 months.The mission will aim to send a three-member crew to space for a period of five to seven days. The spacecraft will be placed in a low earth orbit of 300-400km.

8. Queqiao (or Magpie Bridge) recently seen in news is a:

A. Gravitational waves detector

B. Relay satellite launched by China

C. Train run by using Hydrogen fuel

D. World’s highest bridge

Answer: B

• China launched a relay satellite to be the first to land a spacecraft on the far side of the moon. As a part of Mission Chang’e 4 under Phase II of Chinese Lunar Exploration Programme (CLEP), China launched Queqiao (or “Magpie Bridge,”).

• It is now on its way to the Lagrange point-2 (L2) of Earth-Moon system and will function as a communication relay satellite between the Earth and Chang’e 4 lander-rover spacecraft.

9. Consider the following statements with reference to GROWTH-India:

1. It is India’s first robotic telescope.

2. It recently began its operation at the Indian Astronomical Observatory (IAO) in Nainital.

Which of the statements given above is/are correct?

A. 1 only

B. 2 only

C. Both 1 and 2

D. Neither 1 nor 2

Answer: A

• Recently, India’s first robotic telescope – Global Relay of Observatories Watching Transients Happen (GROWTH)-India, began its operation at the Indian Astronomical Observatory (IAO) in Hanule in Ladakh. It has been funded by the Science and Engineering Board (SERB) of the Department of Science and Technology.

10. Recently an astronomical object named “blazar” was discovered emitting neutrons. What is this object?

A. Massive star

B. Galaxy

C. Dwarf Planet

D. Comet

Answer: B

• Blazar is a galaxy with a supermassive black hole at its centre which produces neutrinos. It is discovered by The IceCube observatory at the South Pole.

11. Which of the following statement is true regarding NASA’s Parker Probe?

A. It is a robotic spacecraft to probe the asteroid called Parker.

B. It is a mission to explore the ionosphere.

C. It is a mission to study the interior and subsurface of Mars.

D. It is a robotic spacecraft to probe the outer corona of the Sun.

 Answer: D

12. Which of the following pairs are correctly matched:

1. Rosetta ———–To study asteroid Bennu

2. New horizons —To study Dwarf planet Pluto

3. Dawn————- To study Jupiter’s Moons

4. Kepler ————To study exoplanets

Choose the correct answer from the following code:

A. 1,2 and 4

B. 2,3 and 4

C. 2 and 3

D. 2 and 4

Answer: D

• Rosetta – Rosetta was a space probe built by the European Space Agency launched on 2 March 2004. Along with Philae, its lander module, Rosetta performed a detailed study of comet 67P/Churyumov–Gerasimenko.

• Dawn – Dawn is a space probe launched by NASA in September 2007 with the mission of studying two of the three known protoplanets of the asteroid belt, Vesta and Ceres. It is currently in orbit about its second target, the dwarf planet Ceres.

13. ICON and GOLD are the two missions that are to be launched by NASA. These missions aims to study which of the following:

A. Ionosphere

B. Stratosphere ( Ozone layer)

C. Mesosphere

D. Troposphere

Answer: A

14. Consider the following statements:

1. Nebulae are the birthplaces of stars.

2. A red giant is a large bright star with a cool surface

3. Black holes are believed to form from massive stars at the end of their lifetimes.

Choose the correct answer from the following code:

A. 1 Only

B. 1 and 3 Only

C. 2 and 3 Only

D. All of the above

Answer: D

15. Consider the following statements:

1. The PSLV is one of world’s most reliable launch vehicles consisting of three stages.

2. It can take up to 1,750 kg of payload to Sun-Synchronous Polar Orbits of 600 km altitude.

3. PSLV was used to launch 104 satellites in a single flight by ISRO.

Choose the correct answer from the following code:

A. 1 Only

B. 1 and 2 Only

C. 2 and 3 Only

D. 1,2 and 3

Answer: C

• The PSLV is one of world’s most reliable launch vehicles consisting of four stages. It has been in service for over twenty years and has launched historic missions like Chandrayaan-1, Mars Orbiter Mission, IRNSS etc