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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The ratio of isentropic work to Euler’s work is known as

Euler
Compressor efficiency
Pressure coefficient
Isentropic efficiency

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Compressors, Gas Turbines and Jet Engines
The pressure ratio of an ideal vaned compressor with increase in mass flow rate

Increases
Decreases
Remain constant
First decreases and then increases

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Compressors, Gas Turbines and Jet Engines
A compressor at high altitudes will require ___ power.

Same
Less
More
None of the listed here

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Compressors, Gas Turbines and Jet Engines
The volume of air delivered in a medium capacity air compressor per unit time is

None of these
0.1 to 1.2 m³/s
Above 5 m³/s
0.15 to 5 m³/s

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Compressors, Gas Turbines and Jet Engines
The inlet pressure is always ___ the discharge pressure.

Less than
Equal to
None of the listed here
More than

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Compressors, Gas Turbines and Jet Engines
The criterion of the thermodynamic efficiency for rotary compressor is

Polytropic compression
Isothermal compression
None of the listed here
Isentropic compression

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