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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
A gas turbine used in air craft should have

High speed and high h.p.
Low weight and small frontal area
High h.p. and low weight
Small frontal area and high h.p.

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Compressors, Gas Turbines and Jet Engines
A jet engine has

No propeller
Propeller on the top
Propeller in front
Propeller at back

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Compressors, Gas Turbines and Jet Engines
A closed cycle gas turbine works on

Carnot cycle
Ericsson cycle
Rankine cycle
Joule cycle

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Compressors, Gas Turbines and Jet Engines
The air-fuel ratio in gas turbines is of the order of

50: 1.
30: 1
15: 1
7: 1

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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.

More than
None of these
Less than
Equal to

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Compressors, Gas Turbines and Jet Engines
The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is

High
Same
Low
Low/high depending on make and type

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