Aspirant Academy

MCQ

Space Exploration MCQ - Practice Questions with Answers

Solve 52 Space Exploration questions for RAS/RPSC preparation.

Practice questions

Q1According to ISRO's EOS-08 mission overview, which launch vehicle and satellite bus combination was slated for EOS-08?

A SSLV-D3 with the Microsat/IMS-1 bus
B PSLV-C58 with the IRS bus
C GSLV-F14 with the I-2K bus
D LVM3-M4 with the I-3K bus
Explanation

The EOS-08 overview identifies SSLV-D3 as the slated launcher and says the spacecraft was built on the Microsat/IMS-1 bus. PSLV-C58, GSLV-F14 and LVM3-M4 are real ISRO launch designations, but they are not the stated EOS-08 launcher in this fact, and the listed bus pairings are near-miss alternatives.

Q2With reference to the revised Gaganyaan programme approved in October 2024, consider the following statements: 1. The programme scope was revised from three missions to eight missions. 2. The revised scope included one additional uncrewed mission and four Bharatiya Antariksh Station precursor missions. 3. The revised budget was Rs. 20,193 crore. Which of the statements given above are correct?

A 1 and 3 only
B 1, 2 and 3
C 2 and 3 only
D 1 and 2 only
Explanation

All three statements match the cited PIB fact: in October 2024, Gaganyaan was revised from three to eight missions, the revised scope added one uncrewed mission and four Bharatiya Antariksh Station precursor missions, and the revised budget was Rs. 20,193 crore. Combinations that omit the mission-count revision, the added uncrewed and BAS precursor missions, or the budget leave out a decisive part of the approved revision.

Q3Match the Gaganyaan TV-D1 vehicle feature with its correct description. List I 1. Propulsion 2. Stage configuration 3. Engine List II a. Single-stage test vehicle b. Modified VIKAS engine c. Liquid-propelled vehicle Select the correct code.

A 1-c, 2-b, 3-a
B 1-a, 2-c, 3-b
C 1-c, 2-a, 3-b
D 1-b, 2-a, 3-c
Explanation

The correct matching is propulsion with liquid-propelled vehicle, stage configuration with single-stage test vehicle, and engine with modified VIKAS engine. Pairings that attach single-stage to propulsion, put the modified engine under propulsion, or treat the engine as a generic liquid-propelled description mix up the three separate specifications in ISRO’s TV-D1 vehicle fact.

Q4Consider the following statements about the Gaganyaan TV-D1 crew module deceleration system: 1. It used 10 parachutes. 2. Parachute deployment was initiated at 17 km altitude. 3. Parachute deployment was initiated only after splashdown. Which of the statements given above are correct?

A 1 and 3 only
B 1 and 2 only
C 1, 2 and 3
D 2 and 3 only
Explanation

Statement 1 is correct because the TV-D1 crew module deceleration system used 10 parachutes. Statement 2 is correct because parachute deployment was initiated at 17 km altitude. Statement 3 is wrong because the cited fact places deployment initiation at altitude, not after splashdown. Therefore, the combination containing only Statements 1 and 2 is correct.

Q5Assertion: PSLV-C57 launched Aditya-L1 from the Second Launch Pad at SDSC, Sriharikota, at 11:50 IST on September 2, 2023. Reason: The launch took place from Sriharikota because Aditya-L1 had to enter a polar Sun-synchronous orbit directly from the launch pad. Choose the correct answer.

A The Assertion is true, but the Reason is false
B Both the Assertion and the Reason are true, but the Reason does not correctly explain the Assertion
C Both the Assertion and the Reason are true, and the Reason correctly explains the Assertion
D The Assertion is false, but the Reason is true
Explanation

The Assertion is true: the cited ISRO press release gives PSLV-C57, Aditya-L1, the Second Launch Pad at SDSC Sriharikota, 11:50 IST, and September 2, 2023. The Reason is false because the cited fact does not say the mission was launched to enter a polar Sun-synchronous orbit directly from the launch pad; that orbit description is a near-miss, not the stated PSLV-C57 launch fact.

You've seen 5 of 52 sample questions

Unlimited practice on Space Exploration comes with the RAS Test Series + Practice pack or Gate Pass.

More questions

6Assertion: The Chandrayaan-3 lander propulsion system used four 800 N throttleable liquid engines. Reason: The same lander propulsion system also used eight 58 N attitude thrusters. Choose the correct answer.

AThe Assertion is false, but the Reason is true
BThe Assertion is true, but the Reason is false
CBoth the Assertion and the Reason are true, and the Reason is the correct explanation of the Assertion
DBoth the Assertion and the Reason are true, but the Reason is not the correct explanation of the Assertion

7Which ordered description correctly captures ISRO's XPoSat launch event on January 1, 2024?

A09:10 IST → GSLV-F14 → XPoSat → geostationary transfer orbit
B09:10 IST → PSLV-C58 → XPoSat → eastward low-inclination orbit
C09:10 IST → LVM3-M4 → XPoSat → polar sun-synchronous orbit
D10:10 IST → PSLV-C58 → Aditya-L1 → halo orbit insertion

8After the revised programme approval, what target period was stated for the first crewed Gaganyaan mission?

A2026-27
B2028-29
C2027-28
D2025-26

9IN-SPACe's Rs. 500 crore Technology Adoption Fund is described as supporting startups through which sequence of outcomes?

ABuild new launch pads, then transfer them to industry
BCommercialise space technologies, then scale manufacturing
CManage the Venture Capital Fund, then authorise government missions
DScale manufacturing first, then notify the Indian Space Policy

10Which sequence correctly gives the two dated milestones of the Aditya-L1 mission stated by ISRO?

ALaunch on September 2, 2023, followed by insertion into lunar orbit on January 6, 2024
BLaunch on September 2, 2023, followed by insertion into the targeted halo orbit around the Sun-Earth L1 point on January 6, 2024
CLaunch on January 6, 2024, followed by insertion into the halo orbit on September 2, 2024
DInsertion into the halo orbit on September 2, 2023, followed by launch on January 6, 2024

11Match the Bharatiya Antariksh Station planning detail with its correct value: List I 1. Configuration of the station 2. Target for BAS-01 3. Target for the fully operational station List II a. Five modules b. 2028 c. 2035 Select the correct matching.

A1-b, 2-a, 3-c
B1-a, 2-b, 3-c
C1-a, 2-c, 3-b
D1-c, 2-b, 3-a

12Assertion: SpaDeX consisted of two small spacecraft of about 220 kg each and was planned for a 470 km circular orbit at 55 degrees inclination. Reason: These figures describe a pair of small spacecraft and their intended orbital parameters, not a single heavy spacecraft mission.

ABoth the Assertion and the Reason are true, and the Reason correctly explains the Assertion
BThe Assertion is true, but the Reason is false
CBoth the Assertion and the Reason are true, but the Reason does not explain the Assertion
DThe Assertion is false, but the Reason is true

13With reference to the Chandrayaan-3 rover payloads, match the instrument with its stated purpose near the landing site: Instrument: 1. LIBS 2. APXS Purpose: a. Chemical composition analysis b. Elemental composition analysis of lunar soil and rocks

A1-b, 2-b
B1-b, 2-a
C1-a, 2-b
D1-a, 2-a

14The first human to walk on the surface of the Moon was:

ASunita Williams
BYuri Gagarin
CNeil Armstrong
DBuzz Aldrin

15Which description correctly identifies the Government-approved Venture Capital Fund for the space sector?

AA Rs. 500 crore fund managed by SIDBI Venture Capital for launch-pad construction
BA Rs. 1,000 crore fund anchored by ISRO and managed by the Department of Space
CA Rs. 500 crore fund launched by IN-SPACe and managed directly by ISRO
DA Rs. 1,000 crore fund anchored by IN-SPACe and managed by SIDBI Venture Capital

More topics in Science & Technology

Explore other subjects