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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The net work input required for compressor with increase in clearance volume

Increases
Increases/decreases depending on compressor capacity
Decreases
Remains same

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Compressors, Gas Turbines and Jet Engines
To avoid moisture troubles, the compressed air main line should

Drop gradually towards the point of use
Be laid exactly horizontally
Rise gradually towards the point of use
Be laid vertically

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Compressors, Gas Turbines and Jet Engines
With the decrease in compression ratio, the volumetric efficiency

First decrease and then increase
Increases
Decreases
Does not change

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Compressors, Gas Turbines and Jet Engines
In jet propulsion power unit, the inlet duct of diverging shape is used in order to

Beautify the shape
Collect more air
Provide robust structure
Convert kinetic energy of air into pressure energy

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

Zero
Same
Less
More

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Compressors, Gas Turbines and Jet Engines
Gas turbines use following type of air compressor

Axial flow type
Reciprocating type
Lobe type
Centrifugal type

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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