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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

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

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Compressors, Gas Turbines and Jet Engines
Out of the following, from where you will prefer to take intake for air compressor

From an air conditioned room maintained at 20°C
From outside atmosphere at 1°C
From coal yard side
From a side where cooling tower is located nearby

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Compressors, Gas Turbines and Jet Engines
The efficiency and work ratio of a gas turbine plant can be increased by

All of these
Injecting water in/around combustion chamber
Reheating the air after partial expansion in the turbine
Adding heat exchanger

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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

Mean effective pressure
Compressor efficiency
Compression ratio
Compressor capacity

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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 velocity of air entering in a rocket is ___ as compared to an aircraft.

Zero
More
Same
Less

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