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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

Propellers
Ramjet engine
Rockets
Turbojet engine

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Compressors, Gas Turbines and Jet Engines
In which case the air-fuel ratio is likely to be maximum?

4-stroke diesel engine
4-stroke petrol engine
Gas turbine
Multi cylinder engine

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Compressors, Gas Turbines and Jet Engines
Inter cooling in compressors

Cools the delivered air
Is the standard practice for big compressors
Results in saving of power in compressing a given volume to given pressure
Enables compression in two stages

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Compressors, Gas Turbines and Jet Engines
The ratio of isentropic work to Euler’s work is known as

Pressure coefficient
Isentropic efficiency
Euler
Compressor efficiency

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Compressors, Gas Turbines and Jet Engines
A 3 m³/min compressor means that it

Delivers 3 m³/ min of compressed air at delivery pressure
Compresses 3 m³/ min of free air
Delivers 3 m³/ min of compressed air
Compresses 3 m³/min of standard air

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Compressors, Gas Turbines and Jet Engines
The closed cycle in gas turbines

In never used
Provides greater flexibility
Provides lesser flexibility
Is used when gas is to be burnt

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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