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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The maximum delivery pressure in a rotary air compressor is

10 bar
30 bar
20 bar
50 bar

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Compressors, Gas Turbines and Jet Engines
The closed cycle in gas turbines

Provides lesser flexibility
Is used when gas is to be burnt
In never used
Provides greater flexibility

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Compressors, Gas Turbines and Jet Engines
The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is

Superheating in compressor
Clearance volume and leakages
All of these
Pressure drop across the valves

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Compressors, Gas Turbines and Jet Engines
The efficiency of roots blower ________ with the increase in pressure ratio.

Decreases
Does not change
Increases
None of these

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Compressors, Gas Turbines and Jet Engines
If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches

Adiabatic
Isothermal
Isochoric
Isentropic

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Compressors, Gas Turbines and Jet Engines
The output of a gas turbine is 300 KW and its efficiency is 20 percent, the heat supplied is

600 KW
15 KW
150 KW
6000 KW

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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