Top 350+ Solved Automobile Engineering MCQ Questions Answer
Q. The castor is called positive when
a. the top of the king pin axis is inclined to the rear of the vehicle
b. the top of the king pin axis is inclined to the front of the vehicle
c. the top of the king pin axis is inclined to the left of the vehicle
d. the top of the king pin axis is inclined to the right of the vehicle
e. None of the above
Q. In a four stroke S.I engine the exhaust valve usually opens
a. 35? to 60? after BDC
b. 35? to 60? before BDC
c. At BDC
d. 10? to 20? before TDC
e. At TDC
Q. For a four stroke engine the maximum power output is reached at an air quantity
a. Deficient by 15 to 20 percent
b. Deficient by 25 to 30 percent
c. Surplus by 15 to 20 percent
d. Surplus by 5 to 10 percent
e. Deficient by 5 to 10 percent
Q. Which of the following is not incorporated in scooters?
a. Air cleaner
b. Muffler
c. Fuel pump
d. Fuel filter
e. None of the above
Q. The exhaust gases are driven out from engine cylinder by the fresh charge of the fuel enter in the cylinder, 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. The freezing temperature of ordinary petrol is
a. ? 30?C to ? 50?C
b. ? 100?C to ? 117?C
c. 10?C
d. 0?C
e. ? 5?C to ? 10?C
Q. The function of governor is
a. To increase the speed of the engine at full load
b. To decrease the speed of the engine at no load
c. To maintain constant load at varying speeds
d. To maintain constant speed at varying loads
e. None of the above
Q. Air supply in case of Diesel engines is usually
a. 5 to 10 percent surplus
b. About 40 percent surplus
c. 10 percent deficient
d. Stoichometric
e. 15 to 20 percent surplus
Q. The capacity of a battery is usually expressed in terms of
a. Volts
b. Weight
c. Current in amperes
d. Ampere hours
e. Watts
Q. Oil pan is attached
a. In a separate unit away from the crankcase
b. At the top of the cylinder block
c. To the bottom of the cylinder block
d. Adjacent to oil filters
e. At the outside wall of the crank case
Q. Dynamo in automobile is a
a. series generator
b. shunt generator
c. either of (A) and (B) above
d. none of the above
e. None of the above
Q. In an engine the probable cause for low oil pressure cannot be
a. Use of dilute engine oil
b. Excessive clearances at valve pushers
c. Air leaks in oil pump suction line
d. Use of heavy engine oil
e. Water, sludge, dirt etc. restricting pump intake screen
Q. In a four stroke engine, each cylinder has
a. Three valves
b. One valve
c. Four valves
d. Number of valves depends upon the engine design
e. Two valves
Q. An automobile tyre will wear rapidly in case
a. It is overloaded
b. It is misaligned
c. It is incorrectly inflated
d. It is more frequently subjected to braking
e. Any of the above
Q. About 5% of fuel in the lubricating oil lessen the ability to lubricate by about
a. 30%
b. 90%
c. 10%
d. 1%
e. 5%