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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

Pressure coefficient
Isentropic efficiency
Compressor efficiency
Euler

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Compressors, Gas Turbines and Jet Engines
A 3 m³/min compressor means that it

Delivers 3 m³/ min of compressed air at delivery pressure
Compresses 3 m³/ min of free air
Compresses 3 m³/min of standard air
Delivers 3 m³/ min of compressed air

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Compressors, Gas Turbines and Jet Engines
In a single stage, single acting reciprocating air compressor, without clearance, the work-done on the air during isentropic compression is ________ the heat required to raise the temperature of air from T₁ to T₂ at a constant pressure.

None of these
Equal to
Less than
Greater than

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Compressors, Gas Turbines and Jet Engines
The net work input required for compressor with increase in clearance volume

Increases/decreases depending on compressor capacity
Remains same
Increases
Decreases

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Compressors, Gas Turbines and Jet Engines
Pick up wrong statement. Surging phenomenon in centrifugal compressor depends on

Stagnation pressure at the outlet
Change in load
Pressure ratio
Mass flow rate

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Compressors, Gas Turbines and Jet Engines
The maximum temperature in a gas turbine is

200°C
1000°C
700°C
500°C

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