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

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Compressors, Gas Turbines and Jet Engines
The ideal efficiency of simple gas turbine cycle depends on

Minimum cycle temperature
Maximum cycle temperature
Pressure ratio
All of these

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Compressors, Gas Turbines and Jet Engines
A turboprop is preferred to turbojet because

It can fly at supersonic speeds
It has high power for take off
It can fly at high elevations
It has high propulsive efficiency at high speeds

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Compressors, Gas Turbines and Jet Engines
For maximum work, the reheating should be done to an intermediate pressure of (Where p₁ = Maximum pressure, and p₂ = Minimum pressure)

(p₁ - p₂)/2
p₁ p₂
p₁/p₂
(p₁ + p₂)/2

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Compressors, Gas Turbines and Jet Engines
The weight per horse power ratio for gas in Turbine as compared to I.C. engine and steam turbine is

Same
Higher
Lower
None of these

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Compressors, Gas Turbines and Jet Engines
The ratio of work-done per cycle to the stroke volume of the compressor is known as

Compressor capacity
Compressor efficiency
Compression ratio
Mean effective pressure

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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