Category: Automobile Engineering Mcqs

A.50 to 100?C
B.100 to 150?C
C.150 to 300?C
D.350 to 500?C

A.open before the beginning of a stroke and close before the end of a stroke
B.open after the beginning of a stroke and close before the end of a stroke
C.open after the beginning of a stroke and close after the end of a stroke
D.open before the beginning of a stroke and close after the end of a stroke

A.causing corrosion of muffler and exhaust pipe
B.had odours
C.poor explosion characteristics
D.All of the above

A.Quality of fuel
B.Engine speed
C.Cylinder dimensions
D.(A) and (B) only
E.(A), (B) and (C) together

A.use of two or more carburettors
B.locating two spark plugs on a cylinder
C.incorporating an auxiliary chamber
D.combining inlet and exhaust valves into a single unit

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

A.Same material as that of piston
B.Cast iron
C.Aluminium
D.Hardened and ground steel
E.White metal

A.Clutch
B.Differential
C.Flywheel
D.Torque convertor
E.Gear box

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

A.Carbon disulphide
B.Gloycol
C.Ammonium chloride
D.Freon 12
E.Liquid ammonia