ISRO Missions — Set 3
Technology · ISRO मिशन · Questions 21–30 of 70
The 'Chandrayaan-2' mission included an orbiter, a lander, and a rover. What was the rover's name?
Correct Answer: D. Pragyan
The rover used in Chandrayaan-2 was named Pragyan, which means 'wisdom' in Sanskrit. Although the lander failed to soft-land, the orbiter continues to function and provide data. Pragyan was designed to conduct chemical analysis of the lunar surface.
In which year was ISRO (Indian Space Research Organisation) officially formed?
Correct Answer: C. 1969
ISRO was established on August 15, 1969, superseding the INCOSPAR committee. It operates under the Department of Space, which reports directly to the Prime Minister. The organization's goal is to harness space technology for national development.
Which propellant is used in the liquid stage of the PSLV rocket?
Correct Answer: D. UDMH and N2O4
The second stage of PSLV uses a liquid engine called the Vikas engine, which burns UDMH and Nitrogen Tetroxide. This engine was developed based on French technology and has been extremely reliable. Liquid stages provide better control and efficiency during the ascent.
The 'Bhuvan' portal developed by ISRO is used for which of the following services?
Correct Answer: C. Satellite imagery and mapping
Bhuvan is a geospatial platform that provides 2D and 3D imagery of the Indian subcontinent. It is widely used for government planning, education, and disaster management. The portal utilizes high-resolution data from Indian remote sensing satellites.
What is the mission life of the Mangalyaan (Mars Orbiter Mission) intended at launch?
Correct Answer: A. 6 months
Mangalyaan was designed for a mission life of only six months in the Martian orbit. However, it far exceeded expectations and continued to work for nearly eight years. It finally lost communication in 2022 after its fuel and battery were exhausted.
Which Indian satellite was exclusively launched for the education sector in 2004?
Correct Answer: A. IRS-P6
GSAT-3, popularly known as EDUSAT, was the first dedicated satellite for interactive distance classroom education. It aimed to provide high-quality educational content to remote areas. The satellite was launched using the GSLV-F01 rocket.
Which country helped India launch its first two satellites, Aryabhata and Bhaskara-I?
Correct Answer: D. Soviet Union
The Soviet Union provided the launch vehicles (Cosmos-3M) for India's early space missions. This collaboration was vital for India's entry into the space age. The launches took place from the Kapustin Yar launch site.
The 'GAGAN' system is a joint initiative between ISRO and which other Indian authority?
Correct Answer: C. Airports Authority of India
GAGAN (GPS Aided GEO Augmented Navigation) provides satellite-based navigation for civil aviation. It enhances the accuracy of GPS signals over the Indian flight information region. This system improves the safety and efficiency of air traffic management.
What is the name of the cryogenic engine used in the upper stage of the LVM3 rocket?
Correct Answer: D. CE-20
The CE-20 is a powerful indigenous cryogenic engine developed for the heavy-lift LVM3 rocket. It uses liquid oxygen and liquid hydrogen as propellants. This technology is critical for carrying large payloads to higher orbits.
Which was the first Indian communication satellite to be launched from an Indian vehicle?
Correct Answer: C. GSAT-1
GSAT-1 was launched by the first developmental flight of the GSLV-D1 in 2001. Although APPLE was India's first experimental communication satellite, it was launched by a European rocket. GSAT-1 marked a step toward self-reliance in communication satellite technology.