____________ is used as cryogenic fuel.
A. Liquid oxygen
B. Liquid hydrogen
C. Combination of liquid oxygen and liquid hydrogen
D. None
Answer:A
____________ is used as cryogenic fuel.
A. Liquid oxygen B. Liquid hydrogen C. Combination of liquid oxygen and liquid hydrogen D. None
Explanation: Combination of both liquid oxygen and liquid hydrogen are used as cryogenic fuel. Mixture of this liquid oxygen and liquid hydrogen results in low temperature which is a main property of cryogenic fuels.