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Compressors, Gas Turbines and Jet Engines

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

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

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Compressors, Gas Turbines and Jet Engines
The degree of reaction of an axial flow turbine is the ratio of isentropic temperature drop in a blade row to the

Adiabatic temperature drop in the stage
Total temperature drop in the stage
Total adiabatic temperature drop
Total temperature drop

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Compressors, Gas Turbines and Jet Engines
During peak load periods, the best method of controlling compressors is

Relief valve
Start-stop motor
Constant speed unloader
Variable speed

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Compressors, Gas Turbines and Jet Engines
The air entry velocity m a rocket as compared to aircraft is

More
Less
Same
Zero

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Compressors, Gas Turbines and Jet Engines
The performance of air compressor at high altitudes will be ________ as compared to that at sea level.

Higher
None of these
Lower
Same

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Compressors, Gas Turbines and Jet Engines
The advantage of multistage compression over single stage compression is

All of these
Decreased discharge temperature
Lower power consumption per unit of air delivered
Higher volumetric efficiency

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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