ISRO Lunar Missions MCQ — 52 Practice Questions with Answers

Explanation

ISRO describes Vikram's Chandrayaan-2 landing attempt as taking place on September 7, 2019, with communication lost after descent from 35 km to around 2 km above the lunar surface. Starting with communication loss reverses the sequence, September 2 is the lander-separation date rather than the landing attempt date, and swapping 2 km and 35 km reverses the stated altitude details.

Explanation

The approval falls in November 2003 because the sourced PSLV-C11/Chandrayaan-1 fact says the Government of India approved ISRO's proposal for the first Indian Moon Mission, Chandrayaan-1, in November 2003. Placing it before September 2003, in October 2003, or after December 2003 changes the month given in the cited fact.

Explanation

The sourced fact states that Chandrayaan-1 made more than 3400 orbits around the Moon before the mission was concluded. Placing the mission conclusion before those orbits reverses the stated order. Saying exactly 3400 or more than 34000 orbits changes the sourced figure.

Explanation

Statement 1 is correct because SARA imaged the lunar surface using low-energy neutral atoms. Statement 2 is correct because the cited energy range was 10 eV to 3.2 keV. Statement 3 is wrong because 30 keV to 270 keV is the hard X-ray region of the High Energy X-ray Spectrometer, not SARA's low-energy neutral atom range.

Explanation

The correct pairing is 11 scientific instruments and the set of countries India, USA, UK, Germany, Sweden and Bulgaria. The figure 8 is not the sourced instrument count, and the country set including Russia, France and Japan does not match the cited Chandrayaan-1 payload description.