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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

Decreases
Increases
Remains same
Increases/decreases depending on compressor capacity

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Compressors, Gas Turbines and Jet Engines
Ratio of indicated H.P. and brake H.P. is known as

Volumetric efficiency
Adiabatic efficiency
Mechanical efficiency
Isothermal efficiency

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Compressors, Gas Turbines and Jet Engines
What will be the volume of air at 327°C if its volume at 27°C is 1.5 m³/ mt?

1.5 m³/ mt.
6 m³/ mt.
3 m³/ mt.
18 m³/ mt.

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Compressors, Gas Turbines and Jet Engines
The thermal efficiency of a gas turbine as compared to a diesel plant is

Depends on other factors
Same
More
Less

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Compressors, Gas Turbines and Jet Engines
The working fluid in a turbine is

In the form of air and water mixture
In three phases
In two phases
In a single phase

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Compressors, Gas Turbines and Jet Engines
In jet engines, paraffin is usually used as the fuel because of its

Ease of atomisation
High calorific value
Low freezing point
Both (A) and (C) above

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