The exhaust value of a four stroke I.C. engine should open
A.exactly at the end of expansion stroke
B.slightly after the end of expansion stroke
C.slightly before the end of expansion stroke
D.none of the above
Category: Automobile Engineering Mcqs
Gudgeon pins are made of
A.Same material as that of piston
B.Cast iron
C.Aluminium
D.Hardened and ground steel
E.White metal
The device for smoothening out the power inpulses from the engine is called
A.Clutch
B.Differential
C.Flywheel
D.Torque convertor
E.Gear box
Which one of the following is a correct statement
A.the exhaust valve of a four stoke I.C. engine should open exactly at the end of expansion stroke
B.in actual practice, inlet valve of a four stroke I.C. engine should open exactly at the start of suction stroke
C.the inlet valve remains open approximately for 180?
D.valve overlap is the angle during which both the inlet and exhaust valves remain open simultaneously
Commonly used antifeeze solution in automobiles is
A.Carbon disulphide
B.Gloycol
C.Ammonium chloride
D.Freon 12
E.Liquid ammonia
Executive clutch clearance caused by improper adjustment or wear of sliding sleeve, generally results in
A.Clutch slip
B.Clutch failure to disengage
C.Clutch plate over heating
D.Uneven clutch engagement
E.Any of the above
Exhaust valve temperature is about
A.35?C
B.100?C
C.150?C
D.500?C
E.1000?C
The minimum cranking speed in petrol engines is
A.Equal to the normal operating speed
B.Half of operating speed
C.One fourth of operating speed
D.60 – 80 rpm
E.2 – 3 rpm
Indicated power of 4-stroke engine is
A.PLAN
C.2 x PLAN
D.1/4 x PLAN
In a S.I. engine the intake valve closes
A.At BDC
B.At TdDC
C.35? to 80? after BDC
D.25? to 80? before BDC
E.10? to 20? before
