Related Questions

An ideal air compressor cycle without clearance on P-V diagram can be represented by following processes
A One adiabatic, two isobaric, and one constant volume
B Two adiabatic and two isobaric
C Two adiabatic, one isobaric and one constant volume
D One adiabatic, one isobaric and two constant volumes
An ideal air compressor cycle with clearance on P-V diagram can be represented by following processes
A One adiabatic, two isobaric, and one constant volume
B Two adiabatic and two isobaric
C Two adiabatic, one isobaric and one constant volume
D One adiabatic, one isobaric and two constant volumes
In a centrifugal compressor, the flow of air is ________ to the axis of compressor.
A Parallel
B Perpendicular
C Inclined
D None of these
If the flow of air through the compressor is parallel to its axis, then the compressor is
A Reciprocating compressor
B Centrifugal compressor
C Axial flow compressor
D Turbo compressor
For a two stage compressor, if index of compression for higher stage is greater than index of compression for lower stage, then the optimum pressure as compared to ideal case will
A Increase
B Decrease
C Remain unaffected
D Other factors control it
In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to
A N.T.P. conditions
B Intake temperature and pressure conditions
C 0°C and 1 kg/cm2
D 20°C and 1 kg/cm2
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
Which is false statement about advantages of multistage compressor in comparison to single stage compressor?
A Less power requirement
B Better mechanical balance
C Less loss of air due to leakage past the cylinder
D Lower volumetric 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
For very low pressure and high discharge rate, the compressor used is a/an __________ compressor.
A Axial
B Reciprocating
C Rotary
D None of these

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