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Compressors, Gas Turbines and Jet Engines

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
Equal to
Double
Three times

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Compressors, Gas Turbines and Jet Engines
Euler's equation can be used for

Axial flow compressors
All of these
Pumps
Radial flow compressors

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Compressors, Gas Turbines and Jet Engines
The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is

Low/high depending on make and type
High
Same
Low

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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

Backward curved
Forward curved
Radial
None of the listed here

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Compressors, Gas Turbines and Jet Engines
In which case the air-fuel ratio is likely to be maximum?

4-stroke diesel engine
Gas turbine
4-stroke petrol engine
Multi cylinder engine

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Compressors, Gas Turbines and Jet Engines
To avoid moisture troubles, the branch connections from compressed air lines should be taken from

Bottom side of main
Left side of main
Right side of main
Top side of main

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