The thrust on the rotor in a centrifugal compressor is produced by
A). Radial component
B). Axial component
C). Tangential component
D). None of the above
For supplying intermittent small quantity of air at high pressure, following compressor is best suited
A). Centrifugal
B). Reciprocating
C). Axial
D). Screw
Out of the following, from where you will prefer to take intake for air compressor
A). From an air conditioned room maintained at 20°C
B). From outside atmosphere at 1°C
C). From coal yard side
D). From a side where cooling tower is located nearby
In a single stage, single acting reciprocating air compressor, without clearance, the work-done on the air during isentropic compression is ________ the heat required to raise the temperature of air from T₁ to T₂ at a constant pressure.
A). Equal to
B). Less than
C). Greater than
D). None of these
In multistage compressor, the isothermal compression is achieved by
A). Employing inter-cooler
B). By constantly cooling the cylinder
C). By running compressor at very slow speed
D). By insulating the cylinder