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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The blades of gas turbine are made of

High nickel alloy
Carbon steel
Stainless steel
High alloy steel

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Compressors, Gas Turbines and Jet Engines
Atmospheric pressure is 1.03 kg/cm and vapour pressure is 0.03 kg/cm. The air pressure will be

1.03 kg/cm²
1.06 kg/cm²
0.53 kg/cm²
1.00 kg/cm²

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Compressors, Gas Turbines and Jet Engines
The inlet pressure is always ___ the discharge pressure.

Equal to
More than
None of the listed here
Less than

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

Equal to
Less than
More than
None of these

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Compressors, Gas Turbines and Jet Engines
In jet propulsion power unit, the inlet duct of diverging shape is used in order to

Provide robust structure
Convert kinetic energy of air into pressure energy
Beautify the shape
Collect more air

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Compressors, Gas Turbines and Jet Engines
The air is delivered ________ in one revolution in case of a three lobbed rotor.

Three times
Two times
Six times
Four times

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