Related Questions

The ratio of work-done per cycle to the stroke volume of the compressor is known as
A Compressor capacity
B Compression ratio
C Compressor efficiency
D Mean effective pressure
The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known as
A Compressor efficiency
B Volumetric efficiency
C Isothermal efficiency
D Mechanical efficiency
The ratio of the volume at cut-off to the swept volume is called
A Cut-off ratio
B Expansion ratio
C Clearance ratio
D None of these
The ratio of the clearance volume to the swept volume is called
A Cut-off ratio
B Expansion ratio
C Clearance ratio
D None of these
The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called
A Mechanical efficiency
B Overall efficiency
C Volumetric efficiency
D Relative efficiency
In an axial flow compressor, the ratio of pressure in the rotor blades to the pressure rise in the compressor in one stage is known as
A Work factor
B Slip factor
C Degree of reaction
D Pressure coefficient
In a single stage, single acting reciprocating air compressor without clearance volume, the work-done is maximum during
A Isothermal compression
B Isentropic compression
C Polytropic compression
D None of these
In a single stage, single acting reciprocating air compressor, without clearance volume, the work-done is minimum during
A Isothermal compression
B Isentropic compression
C Polytropic compression
D None of these
Axial flow compressor has the following advantage over centrifugal compressor
A Larger air handling ability per unit frontal area
B Higher pressure ratio per stage
C Aerofoil blades are used
D Higher average velocities
In a centrifugal compressor, the flow of air is ________ to the axis of compressor.
A Parallel
B Perpendicular
C Inclined
D None of these

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