Top 350+ Solved Automobile Engineering MCQ Questions Answer
Q. Commonly used antifeeze solution in automobiles is
a. Freon 12
b. Ammonium chloride
c. Carbon disulphide
d. Liquid ammonia
e. Gloycol
Q. The heating value of diesel is approximately
a. 7500 kcal/kg
b. 6500 kcal/kg
c. 10,000 kcal/kg
d. 8500 kcal/kg
e. 125000 kcal/kg
Q. For S.I. engine carburettor the float is usually made of
a. Brass sheet
b. Nylon
c. Cast iron
d. Either (A) or (B)
e. Either (B) or (C)
Q. 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
e. None of the above
Q. In case of petrol engines, into the engine cylinder during suction stroke
a. air and fuel is drawn
b. only fuel is drawn
c. only air is drawn
d. none of the above
e. None of the above
Q. 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
Q. In case of friction clutch the coefficient of friction is expected to be
a. 0.4 to 0.5
b. 0.85 to 0.90
c. 0.1
d. 0.01
e. 0.15 to 0.17
Q. The octane rating of petrol commercially available is usually
a. 110 - 125
b. 90 - 100
c. 100 - 105
d. 125 - 140
e. 85 - 90
Q. In a typical medium speed 4-stroke cycle diesel engine, the inlet value
a. Opens at 20? before TDC and closes at 35? after BDC
b. Opens at TDC and closes at BDC
c. Opens at 10? after TDC and closes at 20? after BDC
d. Remains open for 200?C
e. None of the above
Q. The advanctage of stratified charge engine is
a. better part load efficiency
b. resistance to knocking tendency
c. better volumetric efficiency
d. All of the above
e. None of the above
Q. Accumulation of rust and scale in the engine cooling system will cause
a. Reduced output
b. Overheating
c. Slow warm up
d. Low exhaust temperature
e. More noise
Q. The centrifugal advance mechanism is located
a. One the camshaft
b. In the camshaft gear
c. In the distributor
d. On the crankshaft balancer
e. At the drive gear