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Question
Which of the following statement is correct relating to rocket engines ?
Options:
A .  The combustion chamber in a rocket engine is directly analogous to the reservoir of a super sonic wind tunnel
B .  The stagnation conditions exist at the combustion chamber
C .  The exit velocities of exhaust gases are much higher than those in jet engine
D .  all of the above
Answer: Option D
Answer: (d).all of the above
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