Related Questions

The thermodynamic efficiency of rotary compressor is based on
A Isothermal compression
B Adiabatic compression
C Isentropic compression
D Polytropic compression
The type of rotary compressor used in aeroplanes, is of
A Centrifugal type
B Axial flow type
C Radial flow type
D None of these
The maximum delivery pressure in a rotary air compressor is
A 10 bar
B 20 bar
C 30 bar
D 50 bar
Which of the following motors one will choose to drive the rotary compressor?
A D.C. shunt motor
B D.C. series motor
C Universal motor
D Synchronous motor
A rotary compressor is driven by an
A Electric motor
B Engine
C Either (A) or (B)
D None of these
Rotary compressor is best suited for
A Large quantity of air at high pressure
B Small quantity of air at high pressure
C Small quantity of air at low pressure
D Large quantity of air at low pressure
Maximum delivery pressure is a rotary air compressor is of the order of
A 6 kg/cm2
B 10 kg/cm2
C 16 kg/cm2
D 25 kg/cm2
The type of rotary compressor used in gas turbines, is of
A Centrifugal type
B Axial flow type
C Radial flow type
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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