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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The power available for takeoff and climb in case of turbojet engine as compared to reciprocating engine is

Same
Less
May be less or more depending on ambient conditions
More

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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 inlet radius
Impeller inlet radius
Diffuser outlet radius
Impeller outlet radius

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Compressors, Gas Turbines and Jet Engines
Gas turbines use following type of air compressor

Centrifugal type
Reciprocating type
Lobe type
Axial flow type

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Compressors, Gas Turbines and Jet Engines
The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl.

Increased
Reduced
None of these
Zero

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Compressors, Gas Turbines and Jet Engines
In a single acting reciprocating air compressor, without clearance, the compression of air may be

Isentropic
Any one of these
Isothermal
Polytropic

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Compressors, Gas Turbines and Jet Engines
The fuel consumption in gas turbines is accounted for by

Heating value
Higher heating value
Higher calorific value
Lower heating value

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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