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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The air-fuel ratio in gas turbines is of the order of

15: 1
50: 1.
7: 1
30: 1

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Compressors, Gas Turbines and Jet Engines
When air is to be compressed at a high pressure, then it is advantageous to use

None of these
Multistage compression with intercooling
Multistage compression without intercooling
Single stage compression

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Compressors, Gas Turbines and Jet Engines
The maximum propulsion efficiency of a turbojet is attained at around following speed

1050 km/hr
550 km/hr
2400 km/hr
1700 km/hr

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Compressors, Gas Turbines and Jet Engines
In a reciprocating air compressor, the compression work per kg of air

Decreases as clearance volume increases
Increases as clearance volume increases
Is independent of clearance volume
Increases as clearance volume decreases

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Compressors, Gas Turbines and Jet Engines
Cylinder clearance in a compressor should be

About 100% of swept volume
As small as possible
About 50% of swept volume
As large as possible

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Compressors, Gas Turbines and Jet Engines
In a double acting compressor, the air is compressed

In two cylinders on both sides of the piston
In two cylinders
In one cylinder
In a single cylinder on both sides of the piston

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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