Top 350+ Solved Automobile Engineering MCQ Questions Answer
Q. In a multi-cylinder engine, missing in one cylinder is likely to result from
a. Clogged exhaust
b. Vapour lock
c. A defective spark plug
d. An overheated engine
e. None of the above
Q. Dirt or gum in fuel nozzle or jets may cause
a. Excessive fuel consumption
b. Uneven engine speed
c. Smoky black exhaust
d. Lack of engine power
e. White exhaust
Q. When not in use, the self-discharge of an automobile battery in dry weather is usually
a. 0.5 to 1%
b. 7 to 7.5%
c. Not more than 10%
d. Not more than 15%
e. Any of the above
Q. If the cut-off is decreased, the efficiency of Diesel cycle
a. increases
b. decreases
c. is same
d. none of the above
e. None of the above
Q. Connecting rod is attached to the piston by the
a. Piston pin
b. Rod cap
c. Cap bolt
d. Lower cap
e. Cap roller bearing
Q. Clutch slippage while clutch is engaged is particularly noticeable
a. During acceleration
b. At low speed
c. While starting the engine
d. During idling
e. During braking
Q. The function of Diesel feed pump (when ever provided) is to
a. Pump the fuel to the injector
b. Pump the fuel from the tank into the injection pump
c. Send back the fuel from the injector into the tank
d. Pump the oil into the main gallery
e. Pump the fuel from the injection pump to the injector
Q. In automobile braking system retarders are
a. chemicals which limit the rate of pressure rise in engine
b. chassis components which face wind resistance
c. auxillary brakes which supplement the main brake
d. none of the above
e. None of the above
Q. Which of the following lamp in a car will have the least wattage
a. Flasher bulb
b. Head light bulb
c. Stop light bulb
d. Ignition warning light
e. Parking light bulb
Q. The boiling point of Diesel fuel may be expected to be in the range
a. 150 °C to 200 °C
b. 70 °C to 100 °C
c. 125 °C to 135 °C
d. 220 °C to 375 °C
e. 100 °C to 112 °C
Q. Odometer is
a. An instrument which indicates the condition of the battery
b. An instrument for distance measurement
c. An instrument for BHP measurement
d. An instrument for smoke analysis
e. An instrument used for measurement of fuel consumption
Q. For lubrication of which part of an automobile only grease is used
a. Transmission
b. Steering system
c. Axle drive
d. Tie rod
e. All of the above
Q. In case of four cylinder in line engine, the number of firing stroke (s) in one revolution of crank is
a. 3
b. 4
c. 2
d. Depends on the design of engine.
e. 1
Q. Diesel engines are also known as
a. S.I. engines
b. C.I. engines
c. Steam engines
d. none of the above
e. None of the above
Q. High sulphur content of petrol affects the engine performance by
a. causing corrosion of muffler and exhaust pipe
b. had odours
c. poor explosion characteristics
d. All of the above
e. None of the above