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Generate QuizSpace – Fill in the Blank – GK Questions
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A Low Earth Orbit (LEO) is generally defined as an orbit within _______ km above the Earth's surface.
- 200 km
- 2000 km
- 10000 km
- 36000 km
Answer: 2000 km
Low Earth Orbit (LEO) is an orbit around Earth with an altitude between 160 km and 2,000 km. Most satellites, including the ISS and Hubble, operate in LEO.
The RISAT series of satellites developed by ISRO use _______ radar for earth observation.
- Optical
- Synthetic Aperture Radar (SAR)
- Infrared
- Ultraviolet
Answer: Synthetic Aperture Radar (SAR)
RISAT (Radar Imaging Satellite) series uses Synthetic Aperture Radar (SAR) technology, which allows imaging day and night, and through cloud cover, unlike optical satellites.
The Space Shuttle program was operated by _______.
- NASA
- Roscosmos
- ESA
- JAXA
Answer: NASA
The Space Shuttle program was operated by NASA (USA) from 1981 to 2011. It was the world's first reusable spacecraft system.
The Indian Deep Space Network (IDSN) is located in _______.
- Byalalu
- Sriharikota
- Bengaluru
- Hyderabad
Answer: Byalalu
The Indian Deep Space Network (IDSN) complex is located in Byalalu, near Bengaluru. It supports deep space missions like Chandrayaan and Mangalyaan.
The GSLV (Geosynchronous Satellite Launch Vehicle) uses a cryogenic upper stage fueled by liquid _______ and liquid Oxygen.
- Hydrogen
- Helium
- Nitrogen
- Methane
Answer: Hydrogen
The cryogenic upper stage of GSLV uses Liquid Hydrogen (LH2) as fuel and Liquid Oxygen (LOX) as oxidizer. This combination provides high specific impulse, essential for lifting heavy payloads to geostationary orbits.
ESA stands for _______ Space Agency.
- European
- Eastern
- Equatorial
- Eurasian
Answer: European
ESA stands for European Space Agency. It is an intergovernmental organisation dedicated to the exploration of space, with 22 member states.
The first woman in space was _______ from the Soviet Union.
- Sally Ride
- Valentina Tereshkova
- Mae Jemison
- Kalpana Chawla
Answer: Valentina Tereshkova
Valentina Tereshkova became the first woman in space on June 16, 1963, aboard Vostok 6. Sally Ride was the first American woman in space.
The father of the Indian Space Programme is _______.
- APJ Abdul Kalam
- Vikram Sarabhai
- Satish Dhawan
- U.R. Rao
Answer: Vikram Sarabhai
Dr. Vikram Sarabhai is widely regarded as the father of the Indian space program. He established the Physical Research Laboratory (PRL) and played a key role in the formation of ISRO.
The Small Satellite Launch Vehicle (SSLV) developed by ISRO is designed to launch satellites up to _______ kg to Low Earth Orbit.
- 100 kg
- 500 kg
- 1000 kg
- 2000 kg
Answer: 500 kg
SSLV is designed to launch mini, micro, or nano satellites (up to 500 kg) to Low Earth Orbit (LEO) on a demand-based, lower-cost basis.
ISRO's primary launch site, Satish Dhawan Space Centre, is located in _______.
- Thiruvananthapuram
- Sriharikota
- Bengaluru
- Mahendragiri
Answer: Sriharikota
The Satish Dhawan Space Centre (SDSC SHAR) is located in Sriharikota, Andhra Pradesh. It is the only orbital launch site in India.
The first artificial satellite, Sputnik 1, was launched by _______.
- USA
- USSR (Soviet Union)
- China
- India
Answer: USSR (Soviet Union)
Sputnik 1 was launched by the Soviet Union on October 4, 1957, marking the beginning of the Space Age.
The Vikram Sarabhai Space Centre (VSSC), the lead center of ISRO for launch vehicle development, is located in _______.
- Bengaluru
- Sriharikota
- Thiruvananthapuram
- Hyderabad
Answer: Thiruvananthapuram
VSSC is located in Thiruvananthapuram, Kerala. It is the main center for the design and development of launch vehicle technology for ISRO.
The Hubble Space Telescope was launched into low Earth orbit in _______.
- 1980
- 1990
- 2000
- 2010
Answer: 1990
The Hubble Space Telescope was launched by NASA in April 1990. It has provided some of the most detailed images of the universe, revolutionizing astronomy.
A satellite that remains fixed over a specific point on the Earth's equator is in a _______ orbit.
- Polar
- Geostationary
- Low Earth
- Sun-synchronous
Answer: Geostationary
A Geostationary Orbit (GEO) is a circular orbit 35,786 km above the Earth's equator, following the direction of Earth's rotation. An object in such an orbit has an orbital period equal to the Earth's rotational period, appearing stationary to ground observers.
The heaviest launch vehicle developed by ISRO, capable of lifting heavy payloads to geostationary transfer orbit, is _______.
- PSLV
- GSLV Mk III (LVM3)
- SSLV
- ASLV
Answer: GSLV Mk III (LVM3)
GSLV Mk III, now renamed LVM3 (Launch Vehicle Mark-3), is ISRO's heaviest operational launch vehicle, used for launching heavy satellites like Chandrayaan-2, Chandrayaan-3, and OneWeb satellites.
The first human to travel into space was _______.
- Neil Armstrong
- Yuri Gagarin
- Buzz Aldrin
- Rakesh Sharma
Answer: Yuri Gagarin
Soviet cosmonaut Yuri Gagarin became the first human to journey into outer space on April 12, 1961, aboard the Vostok 1 spacecraft.
INSAT series of satellites are primarily used for _______ purposes.
- Interplanetary exploration
- Communication and Meteorology
- Military surveillance only
- Lunar mapping
Answer: Communication and Meteorology
The Indian National Satellite (INSAT) system is one of the largest domestic communication satellite systems in the Asia-Pacific region, used for telecommunications, television broadcasting, and meteorology.
The headquarters of ISRO is located in _______.
- Sriharikota
- Thiruvananthapuram
- Bengaluru
- Ahmedabad
Answer: Bengaluru
ISRO headquarters is in Bengaluru, Karnataka. Sriharikota is the launch site (SDSC SHAR), and Thiruvananthapuram houses VSSC (Vikram Sarabhai Space Centre).
The full form of PSLV, a reliable launch vehicle of ISRO, is _______.
- Polar Satellite Launch Vehicle
- Planetary Satellite Launch Vehicle
- Polar Space Launch Vehicle
- Private Satellite Launch Vehicle
Answer: Polar Satellite Launch Vehicle
PSLV stands for Polar Satellite Launch Vehicle. It is known as the 'Workhorse of ISRO' for its ability to launch satellites into polar orbits.
The first satellite launched by India was named _______.
- Bhaskara
- Aryabhata
- Rohini
- INSAT
Answer: Aryabhata
Aryabhata was India's first satellite, launched on April 19, 1975, from the Soviet Union using a Kosmos-3M rocket. It was named after the ancient Indian mathematician Aryabhata.