the propulsive matter is ejected from within the propelled body

the propulsive matter is caused to flow around the propelled body

its functioning does not depend upon presence of air

none of these

Yes

No

Unknown

None

In a two stage reciprocating air compressor with complete intercooling, maximum work is saved.

The minimum work required for a two stage reciprocating air compressor is double the work required for each stage.

The ratio of the volume of free air delivery per stroke to the swept volume of the piston is called volumetric efficiency.

none of these

one stroke

two strokes

three strokes

four strokes

Correct

Incorrect