Automobile Engineering MCQs
Automobile Engineering MCQs
Answer these 20 Automobile Engineering MCQs and see how sharp is your knowledge of Automobile Engineering.
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1: In radial tyres
A. Inner tubes are always used
B. All plies run parallel to one another and vertical to tyre bead
C. One ply layer runs diagonally one way and another layer runs diagonally the other way
D. None of these
2: The air gap between the central electrode and ground (or side) electrode of a spark plug is around
A. 0.5 mm
B. 1 mm
C. 1.5 mm
D. 0.2 mm
3: In a unit type body (frameless body) design, the sheet metal parts are welded together, forming a frame work to which outer skin is attached.
A. True
B. False
4: The portion of a crankshaft which rests on cylinder block is called main journal.
A. Yes
B. No
5: In automobiles G.V.W. refers to
A. Gross vehicle wheel track
B. Gross vehicle weight
C. Gross vehicle wheel base
D. Gross vehicle width
6: If the level of tension in the belt is too high, it can result in a loss of power or in bending of the rotating shaft or crankshaft.
A. Correct
B. Incorrect
7: The coefficient of friction for the clutch facing is approximately
A. 0.8
B. 1.2
C. 0.1
D. 0.4
8: The most commonly used supplementary restraint system (SRS) component is
A. Airbag
B. Steering
C. Brake
D. Seat belt
9: In a fuel injection system, the electronic control module (ECM) calculates the optimum fuel-injection volume for the engine condition based on the data received from the sensors, and injects this volume of fuel into the intake manifold at the optimum timing.
A. Correct
B. Incorrect
10: In a spark plug, when the temperature of the central electrode exceeds a certain temperature, any carbon that has adhered will be burnt off, and the temperature at which this burning off carbon starts is referred to as the self cleaning temperature.
A. Correct
B. Incorrect
11: The natural gas is compressed in a CNG cylinder at a pressure of
A. 250 bar
B. 300 bar
C. 220 bar
D. 200 bar
12: The flywheel and the pressure plate bind the clutch disc between them so that the engine and the transmission can be engaged.
A. Yes
B. No
13: A baffle plate is fitted inside the oil pan to prevent the oil from splashing when it is subjected to vibration and other movement during vehicle operation.
A. False
B. True
14: Positive camber is used to compensate for wheels tilting inward due to the weight of the vehicle.
A. No
B. Yes
15: If the engine coolant leaks into the engine oil, then engine oil
A. Appears milky
B. Turns black
C. None of these
D. Becomes foamy
16: Which of the following symptom is caused as a result of brake disc run out?
A. Rapid wearing of the brake pads
B. Judder during braking
C. Ineffectiveness of the brakes
D. Localized wearing of the brake pads
17: A clutch is usually designed to transmit maximum torque which is
A. 80 per cent of the maximum engine torque
B. None of these
C. 150 per cent of the maximum engine torque
D. Equal to the maximum engine torque
18: The main function of intake manifold is that it
A. Promotes the mixture of air and fuel
B. Cools the intake air to a suitable temperature
C. Reduces intake noise
D. Distributes intake air equally to the cylinders
19: The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as
A. None of these
B. Indicator diagram
C. Axial force diagram
D. Valve timing diagram
20: The function of an alternator in an automobile is to
A. Convert mechanical energy into electrical energy
B. Partly convert engine power into electric power
C. Supply electric power
D. Continually recharge the battery
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