ISRO GK Questions with Answers
31. When was the PSLV-C37 mission launched?
A) 2015
B) 2016
C) 2017
D) 2018
C) 2017
Explanation: The PSLV-C37 mission was launched on February 15, 2017. It was a historic mission for ISRO as it successfully launched 104 satellites into orbit in a single launch, showcasing India’s prowess in space technology.
32. What is the main purpose of the NavIC system?
A) Weather forecasting
B) Global positioning
C) Regional navigation
D) Satellite communication
C) Regional navigation
Explanation: The NavIC (Navigation with Indian Constellation) system is designed for regional navigation services. It provides accurate position information services to users in India and the surrounding region, similar to the GPS system but focused on the Indian subcontinent.
33. What does NavIC stand for?
A) Navigation with International Coverage
B) Navigation with Indian Constellation
C) National and International Communication
D) Navigation with Integrated Communication
B) Navigation with Indian Constellation
Explanation: NavIC stands for Navigation with Indian Constellation. It is an autonomous satellite navigation system developed by ISRO to provide accurate position information to users in India and the surrounding region.
34. When was the first experimental flight of GSLV?
A) 1999
B) 2001
C) 2003
D) 2005
B) 2001
Explanation: The first experimental flight of the Geosynchronous Satellite Launch Vehicle (GSLV) took place on April 18, 2001. This marked the beginning of ISRO’s journey in developing a launch vehicle capable of placing heavier payloads into geosynchronous orbit.
35. Which ISRO mission aims to study the sun?
A) Mangalyaan
B) Chandrayaan-2
C) Aditya-L1
D) Astrosat
C) Aditya-L1
Explanation: The Aditya-L1 mission is ISRO’s first mission dedicated to studying the sun. It is designed to observe the solar corona and understand various solar phenomena, which have significant impacts on space weather.
36. What is the name of ISRO’s human spaceflight program?
A) Chandrayaan
B) Gaganyaan
C) Mangalyaan
D) Samudrayaan
B) Gaganyaan
Explanation: Gaganyaan is the name of ISRO’s human spaceflight program. The mission aims to send Indian astronauts into space aboard an Indian spacecraft, marking a significant milestone in India’s space exploration efforts.
37. Which rocket launched India’s first dedicated navigation satellite?
A) PSLV-C22
B) GSLV Mk III
C) PSLV-C33
D) PSLV-C14
A) PSLV-C22
Explanation: India’s first dedicated navigation satellite, IRNSS-1A, was launched by the Polar Satellite Launch Vehicle (PSLV). The PSLV-C22 rocket successfully placed IRNSS-1A into orbit in 2013. This marked a significant milestone for India’s space program as it began developing its own regional navigation satellite system, NavIC.
38. When was the GSAT-1 launched?
A) 2000
B) 2001
C) 2002
D) 2003
B) 2001
Explanation: GSAT-1, India’s first experimental Geo-Stationary satellite, was launched on April 18, 2001. It was designed for communication and broadcasting services, marking an important step in India’s journey toward satellite communication.
39. Which ISRO satellite is used for educational purposes?
A) EDUSAT
B) GSAT-10
C) CARTOSAT-2
D) INSAT-3B
A) EDUSAT
Explanation: EDUSAT (also known as GSAT-3) was launched by ISRO on September 20, 2004. It was the first Indian satellite dedicated to the educational sector, intended to meet the demands of distance learning and provide connectivity to educational institutions in remote areas.
40. What is the main goal of the SARAL satellite?
A) Earth Observation
B) Oceanographic Studies
C) Communication
D) Weather Forecasting
B) Oceanographic Studies
Explanation: SARAL (Satellite with ARgos and ALtika) is a joint Indo-French satellite mission launched on February 25, 2013. It is primarily used for oceanographic studies, including the monitoring of sea surface heights, sea levels, and ocean currents, which are crucial for climate research.