Mock Test

Space Part-4

by Anish
Updated On:

Total Questions: 36

11. Cryogenic temperature stands for temperatures: [Chhattisgarh P.C.S. (Pre) 2003]

Correct Answer: (c) Below -150°C
Solution:In Physics, Cryogenics is the study of the production and behaviour of materials at very low temperatures i.e. below -150°C (123 K or -238°F).

12. Low temperatures (cryogenics) find application in: [I.A.S. (Pre) 1999]

Correct Answer: (d) Space travel, magnetic levitation, and telemetry.
Solution:Low temperature (cryogenics) applications are used in space travel, magnetic levitation and telemetry.

13. Cryogenic engines find application in: [U.P.P.C.S. (Pre) 2006, I.A.S. (Pre) 1995]

Correct Answer: (c) Rocket technology
Solution:The word Cryogenics was originated from the Greek word Kryos meaning 'frost' and 'genie' to produce. Usually cryogenics has been used to refer temperatures below approximately -150°C.

A cryogenic engine is used as the rocket engine that uses a cryogenic fuel and oxidizer. Its fuel and oxidizer are gases liquefied and stored at very low temperatures (below -150°C).

14. Cryogenic engines use: [U.P.P.C.S. (Mains) 2004]

Correct Answer: (b) Liquid oxygen as the oxidizer and liquid hydrogen as the fuel.
Solution:The cryogenic engine generally uses liquid oxygen as the oxidizer and liquid hydrogen as the fuel, that require for storage at an extremely low temperature in order to maintain them in a liquid state. Cryogenic engines are also used in space shuttles.

15. The Cryogenic engine is used in: [U.P.P.C.S. (Pre) 1993]

Correct Answer: (c) Space shuttle
Solution:The cryogenic engine generally uses liquid oxygen as the oxidizer and liquid hydrogen as the fuel, that require for storage at an extremely low temperature in order to maintain them in a liquid state. Cryogenic engines are also used in space shuttles.

16. Which of the following is not used as rocket propellant: [U.P.P.C.S. (GIC) 2010]

Correct Answer: (e) None of these.
Solution:Among the given options, all are used as rocket propellant. Liquid hydrogen, liquid hydrazine and kerosene oil are used as fuel while liquid oxygen is used as oxidizer in rocket propellant. Propellant is a mixture of fuel and oxidizer. So right answer is none of these.

17. The Bharat Electronics Ltd. (BEL) is collaborating with ISRO to develop: [R.A.S/R.T.S. (Pre) 2018]

Correct Answer: (b) GaAs solar cells
Solution:

Among the given options, Bharat Electronics Ltd. (BEL) is collaborating with ISRO to develop GaAs (Gallium Arsenide) solar cells. These solar cells for space are more advanced in terms of technology and efficient in order to produce electricity in the space which would eventually help in the longevity of the Indian satellites.

18. Consider the following statements: [I.A.S. (Pre) 2007]

  1. In the year 2006, India successfully tested a full-fledged cryogenic stage in rocketry.
  2. After USA, Russia, and China, India is the only country to have acquired the capability for use of cryogenic stage in rocketry.

Which of the statements given above is/are correct?

Correct Answer: (c) Both 1 and 2
Solution:India has become the sixth member of the exclusive club to have developed a cryogenic stage in rocketry with USA, Russia, European space agency, China, and Japan, after successfully testing a full-fledged cryogenic stage for 50 seconds at the Liquid Propulsion Systems Centre (LPSC) in Tirunelveli, Tamil Nadu in October, 2006.

19. Consider the following statements and find the correct answer from the codes given below: [U.P.P.C.S. (Mains) 2008]

  1. RISAT-2 Satellite was put in orbit by PSLV-C12 in April 2009 from Sriharikota.
  2. Another satellite ANUSAT was also put in orbit by the PSLV-C12. This was built by Anna University, Chennai.
  3. ANUSAT is an experimental communication satellite.
  4. RISAT-2 is a surveillance satellite and can keep a watch on the country’s borders.

Code :

Correct Answer: (d) 1, 2, 3, and 4 all
Solution:RISAT-2 or Radar Imaging Satellite-2 is an Indian radar reconnaissance satellite. It was successfully launched by PSLV-C12 rocket on 20 April, 2009 from Satish Dhawan Space Centre, Sriharikota.

It was designed to monitor India’s borders. ANUSAT is an experimental communication satellite and developed by Anna University, Chennai. It was successfully launched aboard PSLV-C12 along with RISAT-2 from the same place.

20. With reference to Indian satellites and their launchers, consider the following statements: [I.A.S. (Pre) 2002]

  1. All the INSAT series of satellites were launched abroad.
  2. PSLVs were used to launch IRS-series of satellites.
  3. India used the indigenously built cryogenic engines for the first time for powering the third stage of GSLV.
  4. GSAT, launched in the year 2001, had payloads to demonstrate digital broadcast and internet services.

Which of these statements are correct?

Correct Answer: (b) 2,3 and 4.
Solution:GSLV is a three-stage launcher, whose third stage used an indigenous-built cryogenic engine. This indigenous engine was built by Liquid Propulsion System Centre at Mahendragiri of Tamil Nadu.

GSAT-1 satellite was launched on 18 April, 2001 which had payloads to demonstrate digital broadcasts and internet services.

PSLVs were used to launch IRS series of satellites and apart from this, it is also used to launch various other satellites. INSAT-4C was launched from Sriharikota on 10 July, 2006. So the statements 2, 3, and 4 are correct but 1 is false.

Anish

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