Related Questions

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
For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine.
A Equal to
B Twice
C Three times
D Four times
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 work done per cycle to the swept volume in case of compressor is called
A Compression index
B Compression ratio
C Compressor efficiency
D Mean effective pressure
In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in ________ of the piston.
A One stroke
B Two strokes
C Three strokes
D Four strokes
A delivery car went from Candleford to Lark Rise and back at an average speed of23 miles per hour. If the distance from Candleford to Lark Rise is 1 mile, and the trip back too half as much time as the trip there, what was the average speed of the delivery car on the way to Lark Rise?
A 13
B 34
C 12
D 23
A delivery cart went from Candle ford to Lark Rise and back at an average speed of 2/3 miles per hour. If the distance from Candle ford to Lark Rise is 1 mile, and the trip back took half as much time as the trip there, what was the average speed of the delivery cart on the way to Lark Rise?
A 1/3
B 3/4
C 1/2
D 2/3
When the piston is at T.D.C., the volume above the piston in the combustion chamber is the
A Clearance volume
B Cylinder volume
C Exhaust volume
D None of these
In air compressors, free air delivery means the
A Actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions
B Volume of air delivered by the compressor
C Volume of air sucked by the compressor during its suction stroke
D None of the above

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