Exercise: Compressors Gas Dynamics And Gas Turbines

Questions for: Compressors Gas Dynamics And Gas Turbines

The efficiency of roots blower __________ with the increase in pressure ratio.
A:
decreases
B:
increases
C:
does not change
D:
Answer: A
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In a compressed air system, the temperature of air discharged from the air motor is __________ than the initial compressor intake temperature.
A:
more
B:
less
C:
D:
Answer: B
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The perfect intercooling, in multistage compression, means that the temperature of air at inlet to subsequent stages is equal to the initial temperature.
A:
Agree
B:
Disagree
C:
D:
Answer: A
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A rocket engine uses __________ for the combustion of its fuel.
A:
surrounding air
B:
compressed atmospheric air
C:
its own oxygen
D:
none of these
Answer: C
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Euler's equation can be used for
A:
radial flow compressors
B:
axial flow compressors
C:
pumps
D:
all of these
Answer: D
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