MCQ
ISRO MCQ - Practice Questions with Answers
Solve 52 ISRO questions for RAS/RPSC preparation.
Practice questions
Q1Match the SpaDeX second-docking parameter with the correct description: 1. Control mode 2. Inter-satellite distance from which the run was completed 3. Terminal point of the operation
The correct matching is: control mode was fully autonomous, the run was completed from an inter-satellite distance of 15 m, and the terminal point was docking. Ground-commanded or semi-autonomous control, a 150 m or 1.5 km starting distance, and endpoints such as power transfer or orbit raising are not the parameters stated for the second SpaDeX docking in the cited fact.
Q2Which description correctly states the basic configuration and payload class of SSLV?
The sourced description defines SSLV as a three-stage all-solid launch vehicle meant to place satellites weighing up to 500 kg into Low Earth Orbit. The liquid, cryogenic and reusable-winged descriptions change the propulsion, stage count, payload class or mission profile, so they are not the SSLV description in the cited fact.
Q3According to ISRO, at about what time was Aditya-L1 inserted into its halo orbit on 6 January 2024?
The cited ISRO release records the halo-orbit insertion at about 16:00 IST on 6 January 2024. The 14:00, 18:00 and 20:00 IST timings are close same-day distractors, but they are not the time stated for the insertion.
Q4Match XPoSat's payloads with the institution or group that realised them. Payload: 1. POLIX 2. XSPECT Realised by: a. Raman Research Institute b. Space Astronomy Group of URSC
The correct matching is POLIX with Raman Research Institute and XSPECT with the Space Astronomy Group of URSC. Pairing both payloads with Raman Research Institute ignores XSPECT's URSC link. Reversing the two payloads swaps the institutional responsibilities. Pairing both payloads with URSC ignores POLIX's Raman Research Institute realisation.
Q5Consider the following statements about Chandrayaan-3 before powered descent: 1. Its lander module was in a 25 km x 134 km lunar orbit on August 20, 2023. 2. The stated orbit was an Earth parking orbit. 3. The date linked with this orbit update was August 20, 2023. Which of the statements given above are correct?
Statement 1 is correct because ISRO recorded the lander module in a 25 km x 134 km lunar orbit before powered descent. Statement 3 is correct because the date for this orbit update was August 20, 2023. Statement 2 is wrong because the cited orbit was lunar, not an Earth parking orbit.
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More questions
6Which sequence correctly captures the post-launch status of NVS-02 as reported by ISRO in early February 2025?
7Which ISRO centre is officially described as the lead centre for the design and development of launch vehicle technology?
8Consider the following statements regarding the GISAT-1A (EOS-05) satellite: 1. It is a geo-imaging Earth observation satellite designed to operate from a geostationary orbit. 2. It weighs approximately 2,100 kilograms. 3. Geostationary positioning allows it to provide near-continuous observation of the Indian subcontinent for rapid disaster monitoring. Which of the statements given above are correct?
9In the context of the SSLV technology transfer agreement, which event-detail set is correct?
10With reference to Aditya-L1's selected halo orbit, consider the following statements: 1. It is roughly 1.5 lakh km from Earth. 2. Its orbital period is about 177.86 Earth days. 3. It is roughly 15 lakh km from Earth. Which of the statements given above are correct?
11Consider the following statements about Aryabhata. 1. It had a launch mass of 360 kg. 2. Its onboard power was 46 Watts. 3. Its orbital life was nearly seventeen years, and it re-entered on February 10, 1992. Which of the statements given above are correct?
12In Chandrayaan-3's lunar-landing sequence, which event correctly came before the deboosting sequence?
13Consider the following statements about Indian Space Policy 2023: 1. It seeks greater private-sector participation across the space economy value chain. 2. It includes creation of space and ground-based assets within that participation. 3. It confines private participation only to launch-service marketing. Which of the statements above are supported by the policy fact?
14Which launch vehicle is ISRO using for the GSLV-F17 mission carrying the GISAT-1A (EOS-05) geo-imaging satellite scheduled in late May 2026?
15In the chronological count of ISRO's Reusable Launch Vehicle Landing Experiment successes, how should RLV-LEX-03 be placed?