The octane rating of petrol commercially available is usually
A.85 – 90
B.90 – 100
C.100 – 105
D.110 – 125
E.125 – 140
Category: Automobile Engineering Mcqs
In a four stroke S.I engine the exhaust valve usually opens
A.At BDC
B.At TDC
C.35? to 60? after BDC
D.35? to 60? before BDC
E.10? to 20? before TDC
In an Ambassador car the number of forward gears provided is
A.2
B.3
C.4
D.5
E.6
Which of the following is a diesel engined vehicle?
A.Ambassador Mark II
B.Fiat 1100
C.Premier Padmini
D.Standard Gazel
E.None of the above
In a vehicle the probable cause for hard steering could be
A.Low tyre pressure
B.Bent wheel spindle
C.Tie rod ends tight
D.Excessive castor
E.Any of the above
Which type of pump is preferred for pumping lubricating oil in automobile
A.Reciprocating type
B.Open impeller type
C.Centrifugal pump with impeller shrouded on one side only
D.Centrifugal pump with impeller shrouded on both sides
E.Gear pump
Differential gear box oil is usually renewed after
A.1000 km
B.2500 km
C.6000 km
D.2500 – 6000 km
E.10000 – 20000 km
The process of removing the burnt gases from the engine cylinder by the fresh charge coming into the cylinder from the crank-case, is known as
A.cleaning
B.priming
C.scavenging
D.none of the above
In the fuel injection pump of a Diesel engine, the fuel injection timing is adjusted by adjusting the
A.Delivery valve
B.Rotation plunger
C.Lift of plunger
D.Pump camshaft
E.Tappets
In case of clutch if the springs become weak, the remedy lies in
A.Tightening further the springs
B.Interchanging the springs
C.Retempering the springs
D.Replacing the springs
E.Any of the above
