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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
During base load operation, the best method of controlling compressor is

Start-stop motor
Relief valve
Variable speed
Constant speed unloader

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

Isentropic efficiency
Compressor efficiency
Pressure coefficient
Euler

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Compressors, Gas Turbines and Jet Engines
When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades are said to be

Backward curved
Forward curved
Radial
None of the listed here

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Compressors, Gas Turbines and Jet Engines
The type of rotary compressor used in gas turbines, is of

Radial flow type
Centrifugal type
Axial flow type
None of the listed here

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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.

Less than
Greater than
Equal to
None of these

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Compressors, Gas Turbines and Jet Engines
The air-fuel ratio in gas turbines is of the order of

15: 1
50: 1.
30: 1
7: 1

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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