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Compressors, Gas Turbines and Jet Engines

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

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

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Compressors, Gas Turbines and Jet Engines
Which of the following plants is smallest and lightest for generating a given amount of power?

Petrol engine
Gas turbine plant
Diesel engine
Solar plant

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Compressors, Gas Turbines and Jet Engines
The thermodynamic efficiency of rotary compressor is based on

Isothermal compression
Adiabatic compression
Polytropic compression
Isentropic compression

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Compressors, Gas Turbines and Jet Engines
The ratio of work done per cycle to the swept volume in case of compressor is called

Compression ratio
Compression index
Mean effective pressure
Compressor efficiency

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

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Compressors, Gas Turbines and Jet Engines
Gas turbines for power generation are normally used

To enable start thermal power plant
To supply peak load requirements
To supply base load requirements
In emergency

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