Exercise: Compressors Gas Dynamics And Gas Turbines

Questions for: Compressors Gas Dynamics And Gas Turbines

The ratio of the discharge pressure to the inlet pressure of air is called
A:
compression ratio
B:
expansion ratio
C:
compressor efficiency
D:
volumetric efficiency
Answer: A
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The free air delivery is the volume of air that can be delivered by a compressor freely.
A:
True
B:
False
C:
D:
Answer: B
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In a two stage reciprocating compressor with intercooler, the amount of work saved with incomplete intercooling is __________ that in case of complete intercooling.
A:
less than
B:
more than
C:
D:
Answer: A
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In an axial flow compressor, the ratio of pressure in theTOtor blades to the pressure rise in the compressor in one stage is known as
A:
work factor
B:
slip factor
C:
degree of reaction
D:
pressure coefficient
Answer: C
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Which of the following bladings will give maximum pressure rise in a centrifugal compressor, assuming the same overall dimensions, blade inlet angle and rotational speeds ?
A:
Forward curved blades
B:
Backward curved blades
C:
Radial blades
D:
all of these
Answer: A
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