Category: Heat Engines Mcqs

A.40 kg/cm2
B.100 kg/cm2
C.500 kg/cm2
D.1000 kg/cm2
E.1500 kg/cm2

A.1
B.1.1
C.1.2
D.1.41
E.1.5

A.Spark plug is of proper heat rating
B.Composition of mixture in the engine is correct
C.Spark plug is of too high heat rating
D.Spark advance is incorrect
E.Spark plug is short circuited

A.Compress 50 cu feet per min of free air
B.Compress 50 cu feet per min of standard air
C.Deliver 50 cu feet of compressed air at delivery pressure
D.Delivers 50 cu ft. per minute of compressed air
E.None of the above

A.Fuel consumption of engine increases if silencer is choked
B.Fuel consumption of engines decreases if air filter is choked
C.Fuel consumption increases if exhaust valve is burnt
D.Fuel consumption increases if lean mixture is supplied
E.All of the above

A.Gauge pressure
B.Gauge pressure + 1.03 kg/cm2
C.Gauge pressure-atmospheric pressure
D.Gauge pressure + atmospheric pressure
E.None of the above

A.Higher
B.Lower
C.Not affected
D.Fluctuating
E.None of the above

A.To prevent lubricating oil from entering the combustion space
B.To prevent leakage of combustion chamber products
C.To transfer heat from piston to cylinder walls
D.All of the above
E.None of the above

A.Raises melting point
B.Lowers melting point
C.Does not have any effect
D.Makes it heavier than water
E.Depends on other factors

A.Air
B.Water
C.Hydrogen
D.Nitrogen
E.Hydrogen peroxide