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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)

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

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Compressors, Gas Turbines and Jet Engines
For an irreversible gas turbine cycle, the efficiency and work ratio both depend on

Maximum cycle temperature alone
Both pressure ratio and maximum cycle temperature
Minimum cycle temperature alone
Pressure ratio alone

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Compressors, Gas Turbines and Jet Engines
Gas turbines for power generation are normally used

To supply base load requirements
To enable start thermal power plant
To supply peak load requirements
In emergency

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Compressors, Gas Turbines and Jet Engines
The minimum work required for a three stage reciprocating air compressor is ___ the work required for each stage.

Double
Equal to
Six times
Three times

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Compressors, Gas Turbines and Jet Engines
In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of

Compressed air
Atmospheric air
Oxygen alone
Vacuum

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Compressors, Gas Turbines and Jet Engines
The work ratio of a gas turbine plant is defined as the ratio of

Actual heat drop and isentropic heat drop
Net work output and isentropic heat drop
Net work output and heat supplied
Net work output and work done by turbine

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