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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The propulsive power of the rocket is (where v₁ = Jet velocity, and v₂ = Aircraft velocity)

(v₁² -v₂²)/g
(v₁² -v₂²)/2g
(v₁ - v₂)²/2g
(v₁ - v₂)²/g

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Compressors, Gas Turbines and Jet Engines
Gas turbine as compared to internal combustion engine

Has more efficiency
All of the listed here
Produces uniform torque
Can be driven at a very high speed

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Compressors, Gas Turbines and Jet Engines
The effective power of gas turbines is increased by adding the following in compressor

Ammonia and water vapour
Carbon dioxide
Hydrogen
Nitrogen

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Compressors, Gas Turbines and Jet Engines
The gas in cooling chamber of a closed cycle gas turbine is cooled at

None of the listed here
Constant pressure
Constant temperature
Constant volume

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Compressors, Gas Turbines and Jet Engines
High air-fuel ratio in gas turbines

Improves thermal efficiency
Do not damage turbine blades
Increases power output
Reduces exhaust temperature

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

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

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