General Awareness · Science General

ISRO Missions and Satellites

1,830 Questions

ISRO missions and satellites form a vital part of the general awareness syllabus in government exams. This includes historical milestones like Chandrayaan, Mangalyaan, and communication satellites. Attempt these questions to memorize launch dates, objectives, and key figures in Indian space exploration.

Chandrayaan missionsMangalyaan orbitSolar exploration missionsIndian astronautsMeteorological satellites

ISRO Missions and Satellites Questions

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Which of the following satellites have been successfully built by India ?

  1. Communication Satellites

  2. Meteorological Satellites

  3. Remote Sensing Satellites

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All the given satellites have successfully built .

Communication satellite-GSAT-18
Meteorological satellite- INSAT-3D
Remote Sensing satellite- Bhaskara-1

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Which of the following Indian instruments were used in chandrayaan?

  1. TMC

  2. LLRI

  3. HEX

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The scientific payload in Chandrayaan contained 5 Indian instruments and 6 instruments from other countries.

The Indian instruments used in Chandrayaan were Terrain Mapping Camera (TMC), Hyper Spectral Imager (Hy SI), Lunar Laser Ranging Instrument (LLRI), High Energy aj/gamma X-ray Spectrometer (HEX) and Moon Impact Probe (MIP).

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The specifications of chandrayaan include which of the following?

  1. 1380 Kg in mass.

  2. Cuboidal in shape

  3. Fuel and oxidiser were stored in two tanks of 390 litres each.

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The mass of Chandrayaan was 1380 kg at launch, 675 kg at lunar orbit and 523 kg after releasing the impactor. It was cuboidal in shape. The spacecraft used a bipropellant  integrating propulsion system to reach lunar orbit as well as its maintenance while operating the moon. The power plant consisted of one 440 N engine and eight 220 thrusters. Fuel and oxidiser were stored in two tanks of 390 litres each.

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The Chandrayaan used a _______________ integrated propulsion system to reach lunar orbit as well as orbit and altitude maintenance while orbiting the Moon.

  1. tripropellent

  2. bipropellant

  3. two star sensors

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 The Chandrayaan used a bipropellant  integrating propulsion system to reach lunar orbit as well as orbit and altitude maintenance while operating the Moon. The power plant consisted of one 440 N engine and eight 220 thrusters. Fuel and oxidiser were stored in two tanks of 390 litres each.

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What was the aim of launching of Aryabhatta satellite?

  1. To study the Moon

  2. To study the Atmosphere

  3. To study the Mars planet

  4. To study the Space
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Aryabhata, the first satellite built by India, was launched on this day April 19, in the year 1975. Aryabhata was built by the Indian Space Research Organization (ISRO) to conduct experiments in X-ray astronomy, agronomics, and solar physics. The aim of the launching of the Aryabhatta satellite was for conducting scientific experiments for the study of the upper atmosphere.

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After the launch of Aryabhatta, India became the ________ country to launch its own satellite.

  1. 3rd

  2. 4th

  3. 5th

  4. 6th
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

India launched its first satellite, Aryabhatta, in 1975. At that time, it became the 6th country to have launched a satellite using its own launch vehicle (or via international collaboration, depending on the historical context of the question).

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Which of the instruments used in chandrayaan were not indegenously built?

  1. HEX

  2. LLRI

  3. SIR-2

  4. MIP
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Spectrometer Infrared -2 (SIR-2) is an infrared spectrometer build for remote sensing of the lunar surface. SIR-2 represents german scientific contribution to the Indian chandrayaan lunar mission. The project is funded by the Max Planck society and partly by European space agency.

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Among the following which is not the achievements of Chandrayaan-1.

  1. The discovery of the wide-spread presence of water molecules in lunar soil.

  2. Chandrayaans Moon Mineralogy Mapper has confirmed that moon was once completely molten.

  3. It has provided high-resolution spectral data on the mineralogy of the moon.

  4. Chandrayaan-1 has discovered large caves on the Mars surface that can act as a human shelter on the Mars.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Chandrayaan- 1 was first Indian Planetary mission to moon. So option D is incorrect as it says information about Mars Surface. Hence it is incorrect.

All the statements given in option A, B and C are correct.