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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in ________ of the piston.

Two strokes
Three strokes
One stroke
Four strokes

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Compressors, Gas Turbines and Jet Engines
Gas turbine cycle with regenerator

Decreases heat loss is exhaust
Increases thermal efficiency
Allows operation at very high altitudes
Allows high compression ratio

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Compressors, Gas Turbines and Jet Engines
Maximum temperature in a gas turbine is of the order of

1500°C
1000°C
2000°C
700°C

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Compressors, Gas Turbines and Jet Engines
In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs at

Diffuser outlet radius
Impeller inlet radius
Diffuser inlet radius
Impeller outlet radius

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Compressors, Gas Turbines and Jet Engines
Out of the following, from where you will prefer to take intake for air compressor

From outside atmosphere at 1°C
From a side where cooling tower is located nearby
From an air conditioned room maintained at 20°C
From coal yard side

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Compressors, Gas Turbines and Jet Engines
The velocity of air entering in a rocket is ___ as compared to an aircraft.

Less
Same
Zero
More

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