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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Gas turbine works on

Ericsson cycle
Carnot cycle
Brayton or Atkinson cycle
Rankine cycle

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Compressors, Gas Turbines and Jet Engines
Atmospheric pressure is 1.03 kg/cm and vapour pressure is 0.03 kg/cm. The air pressure will be

0.53 kg/cm²
1.03 kg/cm²
1.00 kg/cm²
1.06 kg/cm²

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

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

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Compressors, Gas Turbines and Jet Engines
Which is false statement about multistage compression?

It is best suited for compression ratios around 7:1
Volumetric efficiency is high
Power consumption per unit of air delivered is low
The moisture in air is condensed in the inter-cooler

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

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

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Compressors, Gas Turbines and Jet Engines
The work done per unit mass of air in compression will be least when 'n' is equal to

1
1.4
1.3
1.2

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