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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
In air breathing jet engine, the jet is formed by expanding

Liquid
Plasma
Highly heated atmospheric air
Solids

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Compressors, Gas Turbines and Jet Engines
For perfect intercooling in a two stage compressor

p₂/p₁ = p₃/p₂
p₁ = p₂ p3
p₁ = p3
p₁/p₃ = p₂/p₁

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Compressors, Gas Turbines and Jet Engines
A machine used to raise the pressure of air is called

Air motor
Gas turbine
I.C engine
Compressor

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Compressors, Gas Turbines and Jet Engines
The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ = Workdone due to back flow)

(W₁ + W₂)/W₂
(W₁ + W₂)/W₁
W₂/(W₁ + W₂)
W₁/(W₁ + W₂)

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Compressors, Gas Turbines and Jet Engines
If the flow of air through the compressor is parallel to its axis, then the compressor is

Turbo compressor
Axial flow compressor
Reciprocating compressor
Centrifugal compressor

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

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

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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