Home PYQs UPPSC UPPSC MCQs Prelims 2006 (GS Paper I)

Question

Cryogenic engines are used in

  1. Rockets
  2. Atomic reactors
  3. Defrost refrigerators
  4. Doing research connected with superconductivity

Answer:

Option A: Rockets

Detailed Solution:

The correct answer is “Rockets”.

Cryogenic engines are used in: (1) Rockets

Cryogenic engines use cryogenic fuels, typically liquid hydrogen or liquid oxygen, which are stored at extremely low temperatures to achieve high thrust and efficiency in rocket propulsion.