Top 50+ Solved Engine Lubrication ans Cooling MCQ Questions Answer
Q. Radiator is provided to
a. cool the jacket water
b. pressurise the cooling water
c. provide additional water flow
d. none of the above
Q. Thermostat is used in radiators to
a. control the velocity of water
b. control distribution of water to various cylinders
c. control the water temperature
d. control the pressure of water
Q. As the compression ratio increases, there is a
a. large increase in heat rejection
b. large decrease in heat reduction
c. marginal increase in heat rejection
d. marginal reduction in heat rejection
Q. Spark timing other than minimum spark advance for best torque (MBT) results in
a. less heat rejection
b. more beat rejection
c. no effect on heat rejection
d. none of the above
Q. Direct system of cooling air is one which
a. cooling water flows by gravity
b. hot water is continuously cooled and circulated
c. hot water is simply discharged
d. water is allowed to evaporate in the cylinder jacket
Q. Pump used in the forced cooling system is normally
a. piston pump
b. gear pump
c. vane pump
d. centrifugal pump
Q. Limitations of air cooling systems are
a. applicable only to large engines
b. cooling is fast
c. higher working temperature compared to water cooling
d. all of the above
Q. In a naturally aspirated diesel engine, the air is supplied by
a. a supercharger
b. a centrifugal blower
c. a vacuum chamber
d. an injection tube