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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Standard air is the air at ___ and relative humidity of 36 percent.

0.1 bar and 20°C
0.1 bar and 40°C
1 bar and 20°C
1 bar and 40°C

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Compressors, Gas Turbines and Jet Engines
Separators are generally used in air compressor installations

Before first stage suction
After the inter-cooler
Between the after-cooler and receiver
Before the inter-cooler

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Compressors, Gas Turbines and Jet Engines
An air receiver is to be placed outside. Should it be placed in

Sun
Shade
Enclosed room
Rain

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Compressors, Gas Turbines and Jet Engines
After-cooler is used to

Cause moisture and oil vapour to drop out
Reduce volume
Decrease the delivery temperature for ease in handling
Cool the air

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Compressors, Gas Turbines and Jet Engines
Propulsive efficiency is defined as ratio of

Propulsive power and fuel input
Thrust power and fuel energy
Thrust power and propulsive power
Engine output and propulsive power

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

Isothermal compression
Ideal compression
Isentropic compression
Adiabatic compression

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