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Which of the following "Public Sector Undertaking company" has delivered the biggest cryogenic propellant tank (C32LH2) to the Indian Space Research Organization (ISRO)?
1. Bharat Electronic Limited
2. Power Finance Corporation
3. Hindustan Aeronautics Limited
4. Bharat Dynamics Limited

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Correct Answer - Option 3 : Hindustan Aeronautics Limited

The correct answer is Hindustan Aeronautics Limited.


  • The Hindustan Aeronautics Limited (HAL) has delivered the biggest cryogenic propellant tank (C32 LH2) ever formed by the company to the Indian Space Research Organisation (ISRO).
  • The C32-LH2 tank is a developmental cryogenic propellant tank of aluminum alloy designed for improving the payload capability of the GSLV MK-III launching vehicle.
  • According to HAL, the four-meter diametric tank is of eight-meter length to load 5,755 Kg propellant in the 89 cubic meter volume.
  • The total length of weld carried out in the tank was 115 meters at different stages to the quality requirement of 100 percent tests on radiography, Die penetrant check, and Leakproof, it said.
  • HAL has mastered the skills and technologies required for fabricating welded propellant tanks of Aluminium alloy to such stringent quality requirements, it claimed.

  • Hindustan Aeronautics Limited (HAL)
    • Hindustan Aeronautics Limited is an Indian state-owned aerospace and defense company.
    • It is governed under the management of the Indian Ministry of Defence.
    • HAL was founded on 23rd December 1940 by Walchand Hirachand.
    • HAL headquarters - Bengaluru.
    • Chairman and MD of HAL - R. Madhavan.
  • Indian Space Research Organisation (ISRO)
    • The Indian Space Research Organisation is the national space agency of the Republic of India.
    • It operates under the Department of Space which is directly overseen by the prime minister of India while the chairman of ISRO acts as the executive of the Department of Space as well.
    • ISRO was founded on 15th August 1969 by Vikram Sarabhai.
    • ISRO headquarters - Bengaluru.
    • Director of ISRO - Kailasavadivo Sivan.

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