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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Maximum delivery pressure is a rotary air compressor is of the order of

6 kg/cm²
25 kg/cm²
16 kg/cm²
10 kg/cm²

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Compressors, Gas Turbines and Jet Engines
If the clearance ratio for a reciprocating air compressor is 'K', then its volumetric efficiency is given by

1 - k + k (p₁/p₂) n- 1/n
1 + k - k (p₂/p₁)1/n
1 + k - k (p₂/p₁) n-1/n
1 - k + k (p₁/p₂)1/n

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

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Compressors, Gas Turbines and Jet Engines
Which is false statement about advantages of multistage compressor in comparison to single stage compressor?

Less loss of air due to leakage past the cylinder
Less power requirement
Better mechanical balance
Lower volumetric efficiency

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Compressors, Gas Turbines and Jet Engines
A large clearance volume in a reciprocating compressor results in

Increased volume flow rate
Lower suction pressure
Lower delivery pressure
Reduced volume flow rate

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Compressors, Gas Turbines and Jet Engines
The volume of air delivered by the compressor is called

Compressor capacity
None of the listed here
Swept volume
Free air delivery

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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