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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
A rocket engine uses __________ for the combustion of its fuel.

Compressed atmospheric air
Its own oxygen
None of these
Surrounding air

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Compressors, Gas Turbines and Jet Engines
A large clearance volume in a reciprocating compressor results in

Reduced volume flow rate
Lower delivery pressure
Lower suction pressure
Increased volume flow rate

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Compressors, Gas Turbines and Jet Engines
For minimum work required to compress and deliver a quantity of air by multistage compression

The work-done in each stage should be same
The intercooling should be perfect
All of the listed here
The compression ratio in each stage should be same

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Compressors, Gas Turbines and Jet Engines
An air receiver is to be placed outside. Should it be placed in

Sun
Shade
Enclosed room
Rain

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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
The following property is most important for material used for gas turbine blade

Toughness
Fatigue
Corrosion resistance
Creep

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