Top 350+ Solved Automobile Engineering MCQ Questions Answer
Q. The purpose of the dynamo in an automobile is to
a. Act as a reservoir of electrical energy
b. Continually recharge the battery
c. Convert mechanical energy into electrical energy
d. Partly convert engine power into electric power
e. Supply electric power
Q. In a vehicle if there is no king pin offset
a. Starting steering effort will be high
b. Starting steering effort will be zero
c. Wobbling of wheels will increase
d. bracking effort will be high
e. None of the above
Q. In a four stroke engine, for the combustion of one litre of fuel, the volume of air required would be approximately
a. 1 cu-m
b. 5 - 7 cu-m
c. 15 - 16 cu-m
d. 2 cu-m
e. 9 - 10 cu-m
Q. The number of revolutions per km for a free rolling tyre are less than that calculated from its static radius. This difference in number of revolutions is due to
a. forces in the contact area that cause slight forward of the tread
b. hysteresis of the tyre materials which make the dynamic loaded radius somewhat larger than the static radius
c. either of (A) and (B) above
d. none of the above
e. None of the above
Q. The reaction time of an average driver from recognizing an obstacle is taken as
a. 0.5 to 1.7 seconds
b. 4.5 to 7.0 seconds
c. 3.5 to 4.5 seconds
d. 7 to 10 seconds
e. 2 to 3.5 seconds
Q. The fuel is injected into the cylinder in Diesel engine when the piston is
a. Pump the fuel to the injector
b. Approaching T.D.C. during compression stroke
c. Just after T.D.C. during exhaust compression stroke
d. Exactly at T.D.C. after compression stroke
e. Approaching T.D.C. during exhaust stroke
Q. Dilution of lubricating oil is caused by
a. Solid contaminants like dust, etc.
b. Solid combustion residues
c. Worn off particles
d. Water
e. Fuels
Q. The function of oil scraper rings is to
a. Lubricate cylinder walls
b. Retain compression
c. Maintain vacuum
d. Reduce vacuum
e. Reduce piston wear
Q. Speedometer drive is usually taken from
a. Gear box
b. Dynamo
c. Fan belt
d. Front wheel
e. Flywheel
Q. The gear ratio in the differential unit of a passenger car is of the order of
a. 3 ; 1
b. 6 ; 1
c. 2 ; 1
d. 8 ; 1
e. 10 ; 1
Q. Exhaust gas leakage into the cooling system is most likely to be due to a defective
a. Cylinder head gasket
b. Manifold gasket
c. Water pump
d. Radiator
e. Any of the above
Q. The frame provided for supporting the units of chasis and the body, in case of Tata vehicles is
a. Cross member - type frame
b. Centre beam frame
c. Y-shaped tube frame
d. Self-supporting structure
e. Any of the above
Q. Which one of the following is not a part of the hydraulic braking system?
a. Wheel cylinder
b. Steering mechanism
c. Brade shope
d. Master cylinder
e. Brake pedal
Q. The process of super charging is meant for
a. raising exhaust pressure
b. increasing density of intake air
c. providing air for cooling
d. none of the above
e. An instrument for smoke analysis