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Canadarm3 will serve as external robotic system for the _______ space station.
- ISS
- Tiangong
- Lunar Gateway
- Bhartiya Antariksh Station
Answer: Lunar Gateway
Canadarm3 provides autonomous external robotics for Gateway assembly/maintenance; features AI-enhanced dexterity for uncrewed operations in cislunar space.
Inflatable aeroshell decelerators increase drag area during entry to reduce peak heating for _______ payloads.
- Small CubeSats only
- Heavy/large-volume
- Nuclear-powered
- Solar sail
Answer: Heavy/large-volume
Deployable/inflatable heat shields enable delivery of massive payloads to Mars/Venus where rigid aeroshells are volume/mass constrained; tested in LOFTID/IRVE missions.
The Space Physics Laboratory (SPL) conducting upper atmospheric research is located in _______.
- Thiruvananthapuram
- Tirupati
- Gadanki
- Bengaluru
Answer: Thiruvananthapuram
SPL at VSSC Thiruvananthapuram studies ionosphere/thermosphere using ground-based instruments and satellite data, supporting space weather forecasting.
Honeycomb sandwich panels are widely used in spacecraft structures for their high _______ ratio.
- thermal conductivity
- stiffness-to-weight
- electrical conductivity
- radiation shielding
Answer: stiffness-to-weight
Aluminum/Nomex honeycomb cores bonded to face sheets provide exceptional bending stiffness at minimal mass, ideal for satellite bus and payload panels.
ISRO's Telemetry Tracking Command Network (ISTRAC) headquarters is located in _______.
- Sriharikota
- Bengaluru
- Thiruvananthapuram
- Lucknow
Answer: Bengaluru
ISTRAC HQ in Bengaluru coordinates global network of ground stations supporting LEO/GEO/deep space missions with real-time TT&C services.
The Semi-Cryogenic Engine SCE-200 being developed for NGLV uses _______ cycle.
- Gas generator
- Staged combustion
- Expander
- Pressure-fed
Answer: Staged combustion
SCE-200 employs oxygen-rich staged combustion cycle burning kerosene/LOX, delivering 200-ton thrust class performance for future heavy-lift vehicles.
Friction stir welding is preferred for aluminum-lithium alloy rocket tanks because it produces _______ joints than fusion welding.
- weaker
- stronger and defect-free
- heavier
- more porous
Answer: stronger and defect-free
FSW solid-state process avoids melting/solidification defects, yielding superior mechanical properties for cryogenic tank structures in PSLV/GSLV/LVM3.
India's upcoming National Large Solar Telescope (NLST) will be built at _______ in Ladakh.
- Leh
- Hanle
- Kargil
- Drass
Answer: Hanle
NLST at Hanle (4500 m altitude) will be world's largest off-axis solar telescope (2 m aperture), studying solar magnetic fields and transient phenomena.
The INSAT-3DS meteorological satellite was launched in February 2024 aboard _______.
- PSLV-C58
- LVM3-M4
- GSLV-F14
- SSLV-D3
Answer: GSLV-F14
GSLV-F14 successfully deployed INSAT-3DS on Feb 17, 2024, enhancing weather forecasting and disaster warning capabilities over Indian Ocean Region.
The Inter-Agency Space Debris Coordination Committee (IADC) includes _______ member agencies including ISRO.
- 5
- 10
- 13
- 20
Answer: 13
IADC comprises 13 national/international space agencies coordinating debris mitigation standards; ISRO joined in 2000s contributing tracking data.
The Liquid Propulsion Systems Centre (LPSC) was formerly known as _______.
- VSSC
- SHAR
- Liquid Propulsion System Project
- Propulsion Development Centre
Answer: Liquid Propulsion System Project
LPSC evolved from LPSP established in 1980s for Vikas engine development; renamed LPSC in 1990s integrating liquid/cryogenic stage responsibilities.
NavIC's Standard Positioning Service (SPS) accuracy is better than _______ meters over Indian landmass.
- 5
- 10
- 20
- 50
Answer: 20
NavIC SPS provides <20 m horizontal accuracy over India and surrounding regions; encrypted Restricted Service offers higher precision for authorized users.
The Satish Dhawan Space Centre was originally known as _______ Range.
- Thumba Equatorial Rocket Launching Station
- Sriharikota High Altitude Range
- Balasore Test Range
- Wheeler Island Range
Answer: Sriharikota High Altitude Range
SHAR was renamed Satish Dhawan Space Centre (SDSC) in 2002 honoring former ISRO chairman; SHAR acronym still appears in technical documentation.
The United Nations Office for Outer Space Affairs (UNOOSA) is headquartered in _______.
- New York
- Geneva
- Vienna
- Paris
Answer: Vienna
UNOOSA at Vienna International Centre promotes international cooperation in peaceful space use, maintaining registry of launched objects.
The Indian National Committee for Space Research (INCOSPAR) was established in _______ under Dr. Vikram Sarabhai.
- 1957
- 1962
- 1969
- 1972
Answer: 1962
INCOSPAR was formed in 1962 within DAE, laying groundwork for ISRO's establishment in 1969; it initiated sounding rocket launches from Thumba.
Space elevators propose transporting payloads to orbit via tether anchored at the _______.
- North Pole
- Equator
- South Pole
- 45° latitude
Answer: Equator
Geostationary anchor point requires equatorial location; centrifugal force balances gravity along tether, enabling climber ascent without rockets.
The XPoSat mission carries POLIX payload to measure X-ray polarization in _______ energy band.
- Soft X-ray (0.5-2 keV)
- Medium X-ray (8-30 keV)
- Hard X-ray (30-100 keV)
- Gamma-ray (>100 keV)
Answer: Medium X-ray (8-30 keV)
POLIX (Polarimeter Instrument in X-rays) covers 8-30 keV, complementing AstroSat's CZTI and IXPE's soft band, studying accretion geometry.
The Vera C. Rubin Observatory's LSST will survey the entire visible sky every _______ nights.
- 1-2
- 3-4
- 7-10
- 30
Answer: 3-4
LSST's wide-field camera images 20,000 deg² every 3-4 nights, detecting transients, moving objects, and dark matter via weak lensing.
The SSLV-D3 mission successfully launched EOS-08 satellite in _______.
- 2022
- 2023
- 2024
- 2025
Answer: 2024
SSLV-D3 achieved success on Aug 16, 2024, deploying EOS-08 and SR-0 demosat, validating SSLV operational capability after prior failures.
Star trackers determine spacecraft attitude by matching observed star patterns against an onboard _______.
- Gyroscope database
- Star catalogue
- GPS ephemeris
- Sun sensor array
Answer: Star catalogue
Star trackers image star fields, compare centroids to stored catalogue entries, computing quaternion attitude with arcsecond accuracy.