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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Euler's equation is applicable for

Pumps
Axial compressor
Centrifugal compressor
All of these

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Compressors, Gas Turbines and Jet Engines
The effective power of gas turbines is increased by adding the following in compressor

Nitrogen
Carbon dioxide
Hydrogen
Ammonia and water vapour

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Compressors, Gas Turbines and Jet Engines
The material commonly used for air craft gas turbine is

Timken, Haste alloys
Duralumin
High alloy steel
Stainless steel

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Compressors, Gas Turbines and Jet Engines
Pressure ratio in gas turbines is the ratio of

Compressor pressure ratio
Pressures across the turbine
Highest pressure to exhaust pressure
Inlet pressure to exhaust pressure

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Compressors, Gas Turbines and Jet Engines
The compression ratio for the compressor is always _________ unity.

Less than
More than
Equal to
None of these

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Compressors, Gas Turbines and Jet Engines
Volumetric efficiency is

Reciprocal of compression ratio
The ratio of the air actually delivered to the amount of piston displacement
Index of compressor performance
The ratio of stroke volume to clearance volume

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