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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The inlet pressure is always ___ the discharge pressure.

Less than
None of the listed here
Equal to
More than

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

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

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Compressors, Gas Turbines and Jet Engines
The compression ratio in a gas turbine is of the order of

0.50069444444444
3.5 : 1
0.20902777777778
0.33402777777778

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Compressors, Gas Turbines and Jet Engines
For maximum work, the reheating should be done to an intermediate pressure of (Where p₁ = Maximum pressure, and p₂ = Minimum pressure)

p₁/p₂
p₁ p₂
(p₁ + p₂)/2
(p₁ - p₂)/2

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Compressors, Gas Turbines and Jet Engines
The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known as

Volumetric efficiency
Mechanical efficiency
Isothermal efficiency
Compressor efficiency

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Compressors, Gas Turbines and Jet Engines
The volume of air sucked by the compressor during its suction stroke is called

Free air delivery
None of these
Compressor capacity
Swept volume

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