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The NETRA project establishes a network of radars and telescopes for _______ awareness.
- Weather
- Space situational
- Maritime domain
- Border surveillance
Answer: Space situational
NETRA (Network for Space Object Tracking and Analysis) monitors debris/threats to Indian satellites, integrating radar/optical sensors nationwide.
The Gaia DR3 catalogue released in 2022 contains astrometric data for over _______ stars.
- 100 million
- 1 billion
- 1.8 billion
- 10 billion
Answer: 1.8 billion
Gaia Data Release 3 provides positions, parallaxes, and motions for ~1.8 billion sources, revolutionizing galactic archaeology and stellar physics.
The Bhartiya Antariksh Station is planned to be operational by _______.
- 2028
- 2030
- 2035
- 2040
Answer: 2035
India aims to establish a modular space station by 2035, following Gaganyaan missions, supporting microgravity research and technology demonstration.
Reaction wheels control spacecraft orientation by conserving _______ momentum.
- Linear
- Angular
- Orbital
- Thermal
Answer: Angular
Accelerating/decelerating reaction wheels transfers angular momentum to/from spacecraft body, enabling precise pointing without propellant expenditure.
The Indian Regional Navigation Satellite System was renamed NavIC in _______.
- 2013
- 2016
- 2018
- 2020
Answer: 2016
IRNSS was officially renamed NavIC ('Navigation with Indian Constellation') in April 2016 by PM Modi, emphasizing indigenous capability.
India's largest optical telescope, Devasthal Optical Telescope, is located in _______.
- Ladakh
- Uttarakhand
- Rajasthan
- Himachal Pradesh
Answer: Uttarakhand
The 3.6m DOT at Devasthal, Uttarakhand, operated by ARIES, is India's largest optical telescope, supporting exoplanet and transient astronomy.
The Human-Rated LVM3 variant for Gaganyaan includes additional _______ systems not present on standard LVM3.
- Communication
- Redundancy and safety
- Propulsion
- Navigation
Answer: Redundancy and safety
HLVM3 features triple-redundant avionics, enhanced fault detection, and crew escape integration, meeting stringent human-rating standards.
Deployable solar arrays on modern satellites often use _______ hinges to minimize stowed volume.
- Rigid mechanical
- Shape-memory alloy
- Tape-spring
- Hydraulic
Answer: Tape-spring
Tape-spring hinges provide reliable deployment without motors/latches, reducing mass/volume for large solar arrays on GEO and deep space missions.
The National Centre for Space Applications and Informatics (NCSAI) is being established in _______.
- Bengaluru
- New Delhi
- Gandhinagar
- Chennai
Answer: Gandhinagar
NCSAI in Gandhinagar will integrate space applications with informatics for governance, disaster management, and resource planning.
The IRNSS-1A satellite was replaced by NVS-01 due to failure of its _______.
- Solar panels
- Rubidium atomic clocks
- Thrusters
- Transponders
Answer: Rubidium atomic clocks
All three Rubidium clocks on IRNSS-1A failed in 2016-17, degrading positioning accuracy; NVS-01 launched May 2023 with indigenous clocks as replacement.
The Vikram Sarabhai Space Centre (VSSC) is named after the founder of ISRO and is located in _______.
- Bengaluru
- Thiruvananthapuram
- Ahmedabad
- Sriharikota
Answer: Thiruvananthapuram
VSSC in Thiruvananthapuram is ISRO's lead center for launch vehicle development, honoring Dr. Vikram Sarabhai who established TERLS there in 1963.
NASA's Ingenuity helicopter completed _______ flights on Mars before retiring in 2024.
- 10
- 32
- 72
- 100
Answer: 72
Ingenuity exceeded its planned 5 flights, completing 72 sorties over 3 years, proving powered flight feasibility in thin Martian atmosphere.
The SAGA-220 supercomputer at SAC Ahmedabad is primarily used for _______.
- Launch trajectory optimization
- Weather forecasting and climate modeling
- Satellite image processing
- Deep space navigation
Answer: Weather forecasting and climate modeling
SAGA-220 supports meteorological data processing, monsoon prediction, and climate research, enhancing INSAT/INSAT-3D data utilization.
The Canadian Space Agency contributed the Canadarm2 robotic arm to the _______.
- Mir
- International Space Station
- Tiangong
- Skylab
Answer: International Space Station
Canadarm2, launched in 2001, is essential for ISS assembly, maintenance, and spacecraft berthing, showcasing Canada's robotics expertise.
The Indian Space Association (ISpA) was formed in 2021 as an industry body representing _______ sector interests.
- Government
- Private
- Academic
- Defense
Answer: Private
ISpA represents private space companies in India, advocating for policy reforms and fostering collaboration with ISRO/IN-SPAC.
Aditya-L1's PAPA payload stands for Plasma Analyser Package for _______.
- Aditya
- Astrophysics
- Atmosphere
- Asteroids
Answer: Aditya
PAPA measures solar wind plasma parameters (density, velocity, temperature) to understand coronal heating and space weather drivers.
The SPADEX mission scheduled for 2024-25 demonstrates autonomous _______ in Low Earth Orbit.
- Docking
- Landing
- Refueling
- Deorbiting
Answer: Docking
SPADEX (Space Docking Experiment) involves two small satellites performing rendezvous/docking, validating tech for Gaganyaan and future space stations.
The Regional Remote Sensing Service Centre (RRSC) for South Asia is hosted by India in _______.
- Dehradun
- Hyderabad
- Bengaluru
- New Delhi
Answer: Dehradun
RRSC-South Asia at IIRS Dehradun supports regional countries with remote sensing training/data under UN-ESCAP framework.
Chandrayaan-3's Pragyan rover operated for approximately _______ Earth days on the lunar surface.
- 7
- 14
- 21
- 30
Answer: 14
Pragyan traversed ~100 m and operated for one lunar day (~14 Earth days) before entering sleep mode at lunar sunset; wake-up attempts failed.
The Jugnu nanosatellite developed by IIT Kanpur was launched in _______.
- 2009
- 2011
- 2013
- 2015
Answer: 2011
Jugnu, a 3 kg student satellite for agriculture/disaster monitoring, launched aboard PSLV-C18 in Oct 2011, pioneering academic space research in India.