Ans: D

Exp: 

Statement 1 is correct: Megha-Tropiques is an Indo-French Joint Satellite Mission for studying the water cycle and energy exchanges in the tropics. It is also useful for the study of the tropical atmosphere and climate-related to aspects such as monsoons, cyclones, etc. 

Statement 2 is correct: SARAL (i.e. Satellite with ARGOS and ALTIKA) is a joint Indo-French satellite mission for oceanographic studies. SARAL performs altimetric measurements designed to study ocean circulation and sea surface elevation.

Ans: C

Exp: 

Statement 1 is correct: The Gaganyaan Programme envisages undertaking the demonstration of human spaceflight to Low Earth Orbit (LEO) in the short-term and will lay the foundation for a sustained Indian human space exploration programme in the long run. The objective of Gaganyaan programme is to demonstrate indigenous capability to undertake human space flight mission to LEO.

Statement 2 is correct: The Launch Vehicle Mark-3 or LVM3 (previously referred as the Geosynchronous Satellite Launch Vehicle Mark III or GSLV Mk III) is a three-stage medium-lift launch vehicle developed by the Indian Space Research Organisation (ISRO). LVM3 rocket is identified as the launch vehicle for Gaganyaan mission. It consists of solid stage, liquid stage and cryogenic stage.

Ans: B

Exp:

Statement 1 is incorrect: Women Engineered Satellite (WESAT) is a project of the Lal Bahadur Shastri Institute of Technology for Women. The nanosatellite weighs around  1 kg  and is stated to be country’s first satellite to be designed fully under the supervision of women.

Statement 2 is correct: The nanosatellite will be used to measure UV rays in space and the earth’s surface and their influence on the warm temperatures and climate change phenomena. It will research ultraviolet radiation and its effects.

Ans: D

Exp:

Statement 1 is correct: NVS-01 is the first of the second-generation satellites envisaged for the Navic constellation that is designed to sustain and augment the NavIC with enhanced features. It will be deployed in the Geosynchronous Transfer Orbit.

Statement 2 is correct: The NVS series of satellites will incorporate L1 band signals additionally to widen the services. For the first time, an indigenous atomic clock will be flown in NVS-01. This series incorporates L1 band signals additionally to widen the services.

Ans: C

Exp: 

Statements 1 and 2 are correct:  ISRO developed a Small Satellite Launch Vehicle (SSLV) to cater to the launch of up to 500 kg satellites to Low Earth Orbits on a ‘launch-on-demand’ basis. It is capable of launching Mini, Micro, or Nanosatellites (10 to 500 kg mass) to a 500 km planar orbit. SSLV provides low-cost access to Space on a demand basis. It offers low turn-around time, flexibility in accommodating multiple satellites, launch-on-demand feasibility, minimal launch infrastructure requirements, etc.