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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Gas turbine blades are given a rake

Depending on the velocity
Opposite to the direction of motion of blades
In the direction of motion of blades
Equal to zero

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Compressors, Gas Turbines and Jet Engines
Compression efficiency is compared against

Adiabatic compression
Ideal compression
Isentropic compression
Isothermal compression

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Compressors, Gas Turbines and Jet Engines
An air compressor may be controlled by

Blow off control
Any one of the above
Throttle control
Clearance control

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

m³/min
kg/m³
kg/m²
m³/kg

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Compressors, Gas Turbines and Jet Engines
The temperature of air at the beginning of the compression stroke is ________ the atmospheric temperature.

Equal to
None of these
More than
Less than

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Compressors, Gas Turbines and Jet Engines
The indicated work per unit mass of air delivered is

Greatly affected by clearance volume
Not affected by clearance volume
Directly proportional to clearance volume
Inversely proportional to clearance volume

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