Question 1

What was the name of India's first satellite launched by ISRO in 1975?

Accepted Answer

Aryabhata. Aryabhata was India's first satellite and was launched using a Soviet rocket. It was named after the famous 5th-century Indian astronomer. The satellite was built to conduct experiments in X-ray astronomy and solar physics.

Question 2

Which ISRO mission made India the first country to reach Mars in its very first attempt?

Accepted Answer

Mangalyaan. The Mars Orbiter Mission, also known as Mangalyaan, was launched in November 2013. It successfully entered the Martian orbit in September 2014. India became the fourth space agency in the world to reach Mars.

Question 3

Which launch vehicle is famously known as the 'Workhorse of ISRO'?

Accepted Answer

PSLV. The Polar Satellite Launch Vehicle (PSLV) has a high success rate and has launched numerous Indian and foreign satellites. It was the first Indian launch vehicle to be equipped with liquid stages. PSLV has been used for landmark missions like Chandrayaan-1 and Mangalyaan.

Question 4

In 2017, ISRO created a world record by launching how many satellites in a single mission?

Accepted Answer

104. ISRO's PSLV-C37 mission successfully deployed 104 satellites into orbit simultaneously. Out of these, 101 were foreign satellites and three were Indian. This achievement demonstrated ISRO's advanced capability in multiple satellite deployment.

Question 5

What is the primary objective of ISRO's Aditya-L1 mission?

Accepted Answer

Study of the Sun. Aditya-L1 is India's first dedicated scientific mission to study the Sun. The satellite is placed in a halo orbit around the Lagrange point 1 (L1) of the Sun-Earth system. It monitors solar activities and their effect on space weather in real time.

ISRO Missions — Set 1