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Mechanical Engineering - Compressors, Gas Dynamics and Gas Turbines

Exercise : Compressors, Gas Dynamics and Gas Turbines - Section 3
41.
The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)
rγ - 1
1 - rγ - 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
The speed of rotary air compressor is __________ as compared to reciprocating air compressor.
high
low
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
When air is to be compressed at a high pressure, then it is advantageous to use
single stage compression
multi-stage compression without intercooling
multi-stage compression with intercooling
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
The absolute pressure of air at the outlet of a compressor is called
back pressure
critical pressure
discharge pressure
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
The degree of reaction is usually kept __________ for all types of axial flow compressors.
0.2
0.3
0.4
0.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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