Top 350+ Solved Automobile Engineering MCQ Questions Answer
Q. Engine dynamo is usually driven by
a. V-belt drive
b. Gear drive
c. Chain drive
d. P-I-V drive
e. Flat belt drive
Q. In actual practice, the inlet value of a four stroke I.C. engine should open
a. exactly at the start of suction stroke
b. slightly after the start of suction stroke
c. slightly before the start of the suction stroke
d. none of the above
e. None of the above
Q. Gudgeon pins are made of
a. White metal
b. Hardened and ground steel
c. Aluminium
d. Cast iron
e. Same material as that of piston
Q. In a four stroke four cylinder petrol engine, the speed of distributor shaft is
a. Half the engine speed
b. Four times the engine speed
c. Same as engine speed
d. Double of engine speed
e. Quarter of the engine speed
Q. Instead of values, ports are used in case of
a. Petrol engine
b. Diesel engine
c. Four-stroke I.C. engines
d. Two-stroke I.C. engines
e. None of the above
Q. In triptane rating the non-knocking reference fuel is
a. leaded 2,3,3 trimethyl butane
b. isobutane, C4H10
c. butadiene C4H6
d. none of the above
e. None of the above
Q. Which type of pump is preferred for pumping lubricating oil in automobile
a. Reciprocating type
b. Centrifugal pump with impeller shrouded on one side only
c. Open impeller type
d. Gear pump
e. Centrifugal pump with impeller shrouded on both sides
Q. In cars a temperature indicating instrument is usually provided which indicates the temperature of
a. Lubricating oil
b. Air surrounding engine cylinders
c. Jacket cooling water
d. Engine piston
e. Engine cylinder
Q. Which one of the following is not the trade name of tractor in India?
a. Standard
b. Kirloskar
c. Escort
d. Ford
e. HMT
Q. The brake pipes in hydraulic brake systems are made of
a. Aluminium
b. Plastic
c. Steel
d. Rubber
e. Polyvinylchloride
Q. The maximum temperature in an I.C. engine is of the order of
a. 2000-2500?C
b. 1000-1500?C
c. 1500-2000?C
d. 2500-3000?C
e. 500-1000?C
Q. In automobile ignition system, a distributor is mounted on
a. low voltage side
b. high voltage side
c. both low as well as high voltage side
d. neither low voltage nor high voltage side
e. None of the above
Q. The purpose of crankcase ventilation is to
a. Assist in maintaining the viscosity of oil
b. Supply oxygen to the crank case
c. Partly convert engine power into electric power
d. Remove vaporized water and fuel
e. Cool the oil
Q. In a S.I. engine, when most economical mixture is supplied, the colour of exhaust flame is expected to be
a. Yellow-red to red
b. Dark red
c. Bluish, transparent
d. Dark blue to reddish-yellow
e. Colour of exhaust flame has nothing to do with the mixture composition
Q. Which one of the following is a wrong staement?
a. Scavenging is the process of removing the burnt gas from the engine cylinder by fresh charge coming into cylinder from the crank-case
b. The power developed in four stroke I.S. engine, for the same engine speed and cylinder volume, as compared to that of a two stroke engine is one-half
c. Instead of values, ports are used in case of two-stroke I.C. engines
d. In case of four stroke I.C. engines, the exhaust gases are driven out from engine cylinder by fresh charge of the fuel entering the cylinder
e. None of the above