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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The capacity of a compressor is 5 m/min refers to

Free air
Standard air
Compressed air at delivery pressure
Compressed air

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Compressors, Gas Turbines and Jet Engines
A turboprop is preferred to turbojet because

It can fly at high elevations
It has high power for take off
It has high propulsive efficiency at high speeds
It can fly at supersonic speeds

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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

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

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Compressors, Gas Turbines and Jet Engines
When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

More than
Equal to
None of these
Less than

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Compressors, Gas Turbines and Jet Engines
The thrust on the rotor in a centrifugal compressor is produced by

None of these
Radial component
Tangential component
Axial component

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Compressors, Gas Turbines and Jet Engines
The capacity of a compressor is expressed in

kg/m²
kg/m³
m³/kg
m³/min

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