Only rocket engines can be propelled to space because
A. They can generate very high thrust
B. They have high propulsion efficiency
C. These engines can work on several fuels
D. They are not air breathing engines
Answer: Option D
A. They can generate very high thrust
B. They have high propulsion efficiency
C. These engines can work on several fuels
D. They are not air breathing engines
Answer: Option D
The compression ratio for the compressor is always _________ unity.
A. Equal to
B. Less than
C. More than
D. None of these
The hottest point in a gas turbine is
A. At the base
B. At the tip
C. In the center
D. Between ~ to i of the blade height
Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is
A. Higher
B. Lower
C. Equal
D. Can't be compared
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