ISRO Quiz Questions With Answers- 2023
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What was approved by the Union Cabinet on Thursday(April 6th, 2023)?
Answer: The Indian Space Policy, 2023.
What are the main objectives of the Indian Space Policy, 2023?
Answer: To enhance the role of the Department of Space, boost activities of ISRO missions, and give a larger participation of research, academia, startups, and industry.
What steps has the government taken to boost the development of the space sector?
Answer: The government has opened up the space sector for the private sector.
What is the current FDI policy in the space sector?
Answer: Presently, FDI in the space sector is allowed up to 100% in the area of Satellites-Establishment and Operations through the government route only.
What is the Indian National Space Promotion and Authorization Centre (IN-SPACe)?
Answer: IN-SPACe is the regulatory and promotional body for space activities.
What is the specific role of IN-SPACe with regard to FDI in the space sector?
Answer: The specific role of IN-SPACe for channelising FDI will evolve after the approval of the revised FDI policy by the government.
What is the Reusable Launch Vehicle Autonomous Landing Mission (RLV LEX)?
Answer: It is a mission to develop a reusable rocket or launch vehicle in India.
What milestone did the Indian space agency achieve with the completion of RLV LEX?
Answer: The Indian space agency achieved a unique milestone with several firsts in the successful completion of the Reusable Launch Vehicle Autonomous Landing Mission (RLV LEX).
Where is Sona College of Technology located, and what is its contribution to RLV LEX mission?
Answer: Sona College of Technology is located in Salem, Tamil Nadu, and its 25kW quadruplex ‘Brushless DC’ motor was used in the helicopter hoist for lifting RLV LEX to 4.5 km altitude and releasing it for autonomous landing.
What is the commitment of the Sona College of Technology’s electrical and electronics engineering department?
Answer: The department is committed to developing and delivering indigenous technology products for mission-critical applications.
What is the significance of the deployment of SonaSPEED brushless DC motors in ISRO’s indigenous landing gear?
Answer: The successful deployment of SonaSPEED brushless DC motors in ISRO’s indigenous landing gear marks the arrival of the ‘Make in India’ mission.
What is the specialty of the autonomous landing carried out by RLV LEX?
Answer: It is the first time in the world that a winged body has been carried to an altitude of 4.5 km by a helicopter and released for carrying out an autonomous landing on a runway.
What is the contribution of Vee Technologies to India’s defence sector?
Answer: Access to SonaSPEED technology spurs Vee Technologies’ motor division to participate in India’s defence sector with greater confidence.
Has SonaSPEED motors been part of any other key missions of ISRO?
Answer: Yes, SonaSPEED motors have been part of many key missions of the Indian Space Research Organisation (ISRO).
What is the name of the reusable launch vehicle that India successfully landed autonomously?
Answer: The reusable launch vehicle is called RLV LEX.
When was the test conducted for the RLV LEX?
Answer: The test for RLV LEX was conducted on April 2, 2023.
Where was the test conducted for the RLV LEX?
Answer: The test was conducted at the Aeronautical Test Range (ATR), Chitradurga, Karnataka.
What does RLV LEX mean?
Answer: RLV LEX stands for Reusable Launch Vehicle Autonomous Landing Mission.
What is the significance of RLV LEX for the Indian space program?
Answer: The RLV LEX makes other operational rockets more cost-effective by adapting contemporary technologies.
What was the method used to release the RLV LEX for autonomous landing?
Answer: A Chinook helicopter of the Indian Air Force carried the RLV LEX to a height of 4.5 km as an underslung load and released it in mid-air.
How high did the RLV LEX fly before it was released for autonomous landing?
Answer: The RLV LEX flew to a height of 4.5 km above the mean seal level (MSL).
How many parameters did the release conditions for the RLV LEX include?
Answer: The release conditions included 10 parameters covering position, velocity, altitude, body rates, and others.
What system did the RLV LEX use for navigation?
Answer: The RLV LEX used an integrated navigation, guidance & control system based on pseudolite systems and NavIC receiver.
What did the landing parameters achieved by ISRO during the autonomous landing of RLV LEX simulate?
Answer: The landing parameters achieved, such as ground relative velocity, the sink rate of landing gears, and precise body rates, simulated those experienced by an orbital re-entry space vehicle in its return path.
What were some of the state-of-the-art technologies used in RLV LEX?
Answer: The technologies used in RLV LEX included accurate navigation hardware and software, pseudolite system, Ka-band Radar Altimeter, NavIC receiver, indigenous landing gear, aerofoil honey-comb fins, and brake parachute system.
What is RLV LEX?
Answer: RLV LEX is essentially a space plane with a low lift to drag ratio requiring an approach at high glide angles that necessitated a landing at high velocities of 350 kmph.
What did ISRO use for accurate altitude information during the autonomous landing of RLV LEX?
Answer: ISRO used a Digital Elevation Model (DEM) of the landing site with a Ka-band Radar Altimeter for accurate altitude information.
What did extensive wind tunnel tests and computational fluid dynamics (CFD) simulations enable for RLV LEX?
Answer: The tests and simulations enabled aerodynamic characterization of RLV LEX prior to the flight.
What was the previous mission of ISRO related to the re-entry of a winged vehicle?
Answer: The previous mission of ISRO related to the re-entry of a winged vehicle was the HEX mission in May 2016.
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