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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
For speed above 3000 km/hour, it is more advantageous to use

Ramjet engine
Turbojet engine
Propellers
Rockets

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Compressors, Gas Turbines and Jet Engines
1 m of air at atmospheric condition weighs approximately

1.0 kg
2.2 kg
1.3 kg
0.5 kg

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Compressors, Gas Turbines and Jet Engines
The temperature of air at the beginning of the compression stroke is ________ the atmospheric temperature.

Less than
More than
None of these
Equal to

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Compressors, Gas Turbines and Jet Engines
A gas turbine used in air craft should have

High h.p. and low weight
Small frontal area and high h.p.
Low weight and small frontal area
High speed and high h.p.

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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
Compression ratio
Compressor efficiency
Compressor capacity

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Compressors, Gas Turbines and Jet Engines
The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is

Pressure drop across the valves
Clearance volume and leakages
All of these
Superheating in compressor

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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