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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The following property is most important for material used for gas turbine blade

Toughness
Corrosion resistance
Creep
Fatigue

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Compressors, Gas Turbines and Jet Engines
Isothermal compression though most efficient, but is not practicable because

It is impossible in practice
Compressor has to run at very slow speed to achieve it
It does not increase pressure much
It requires very big cylinder

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Compressors, Gas Turbines and Jet Engines
Turbofan engine employs

One air stream
Solid fuel firing
Two or more air streams
No air stream

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Compressors, Gas Turbines and Jet Engines
In the aircraft propellers

Its functioning does not depend on presence of air
All of these
Propulsive matter is ejected from within the propelled body
The propulsive matter is caused to flow around the propelled body

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Compressors, Gas Turbines and Jet Engines
A simple turbojet engine is basically

Chemical rocket engine
A propeller system
Ramjet engine
Gas turbine engine equipped with a propulsive nozzle and diffuse

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

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

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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