Too early ingition in SI engine will cause
A.pinking, power loss
B.hotter running, power loss
C.power loss, higher fuel consumption
D.none of the above
Category: Automobile Engineering Mcqs
1000 mm diameter tyre is generally used on
A.Scooters
B.Mopads
C.Motorcycles
D.Jeeps
E.Trucks
In a four stroke engine, for the combustion of one litre of fuel, the volume of air required would be approximately
A.1 cu-m
B.2 cu-m
C.5 – 7 cu-m
D.9 – 10 cu-m
E.15 – 16 cu-m
Gum content of petroleum fuels is mainly due to
A.concentration of sulphides and disulphides
B.evaporation loss of lighter fractions
C.oxidation of unsaturated bydrocarbons
D.All of the above
The exhaust gases are driven out from engine cylinder by the fresh charge of the fuel enter in the cylinder, in case of
A.Petrol engine
B.Diesel engine
C.Four stroke I.C. engines
D.Two-stroke I.C. engines
The knocking in S.I. engines can be prevented if the end mixture is having
A.high density
B.medium density
C.low density
D.none of the above
A heat-treated glass generally used in automobiles upon cracking bursts into
A.Sharp edged fragments
B.Small particles
C.Does not disintegrate
D.Either of the above
E.None of the above
The speed of the engine is increased or decreased by operating
A.Throttle valve
B.Choke valve
C.Steering
D.Clutch
E.Any of the above
The disadvantage of stratified charge engine is
A.reduced power for a given engine size
B.higher weight for bhp
C.poor reliability
D.All of the above
The condenser in ignition circuit of an S.I. engine
A.increases the battery voltage
B.decreases the current from battery
C.avoids arcing at contact breaker
D.none of the above
