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Compressors, Gas Turbines and Jet Engines

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

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

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Compressors, Gas Turbines and Jet Engines
When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades are said to be

None of the listed here
Backward curved
Forward curved
Radial

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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.

Six times
Double
Equal to
Three times

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Compressors, Gas Turbines and Jet Engines
A rocket engine for the combustion of its fuel

Does not require oxygen
Uses compressed atmospheric air
Uses surrounding air
Carries its own oxygen

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Compressors, Gas Turbines and Jet Engines
A closed cycle gas turbine works on

Joule cycle
Rankine cycle
Carnot cycle
Ericsson cycle

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Compressors, Gas Turbines and Jet Engines
Rotary compressors are used for delivering

Small quantities of air at low pressures
Large quantities of air at low pressures
Large quantities of air at high pressures
Small quantities of air at high pressures

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