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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Losses in a centrifugal compressor are due to

Impeller channel losses
Inlet losses
Diffuser losses
All of the listed here

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

p₂/p₁ = p₃/p₂ = p₄/p₃
p₁ p₃ = p₂ p₄
p₃/p₁ = p₄/p₂
p₁ p₂ = p₃ p₄

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Compressors, Gas Turbines and Jet Engines
Reheating in multistage expansion gas turbine results in

Reduction in compressor work
Decrease of heat loss in exhaust
Maximum work output
High thermal efficiency

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Compressors, Gas Turbines and Jet Engines
The hottest point in a gas turbine is

at the base
at the tip
in the center
between ~ to i of the blade height

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Compressors, Gas Turbines and Jet Engines
Which of the following plants is smallest and lightest for generating a given amount of power?

Petrol engine
Gas turbine plant
Solar plant
Diesel engine

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Compressors, Gas Turbines and Jet Engines
The maximum compression ratio in an actual single stage axial flow compressor is of the order of

0.045138888888889
0.043055555555556
0.00070833333333333
0.048611111111111

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