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Compressors, Gas Turbines and Jet Engines

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

Zero
More
Same
Less

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

None of the listed here
Less than
More than
Equal to

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Compressors, Gas Turbines and Jet Engines
To avoid moisture troubles, the compressed air main line should

Drop gradually towards the point of use
Be laid vertically
Rise gradually towards the point of use
Be laid exactly horizontally

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Compressors, Gas Turbines and Jet Engines
A rotary compressor is driven by an

Engine
None of these
Either (A) or (B)
Electric motor

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Compressors, Gas Turbines and Jet Engines
The mass of gas turbine per kW developed is about ________ as that of an I.C. engine.

One sixth
One fourth
Same
One-half

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Compressors, Gas Turbines and Jet Engines
Work ratio of a gas turbine may be improved by

Both (A) and (C) above
Increasing the compression work
Decreasing the compression work
Increasing the turbine work

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