High carbon content in diesel oil used for diesel engine leads to_________________?

A. Production of highly corrosive gases corroding the cylinder walls and exhaust system
B. Excessive engine wear
C. Damaging of both the storage tank and the engine
D. Deposition on engine parts

The cooling water requirement for diesel engine is of the order of________________?

A. 0.2 to 1.0 liter per minute per h.p.
B. 1 to 3 liters per minute per h.p.
C. 5 to 10 liters per minute per h.p
D. 10 to 20 liters per minute per h.p.

The function of a distributor in an automobile is to__________________?

A. Distribute charge, equally to all the cylinders
B. Regulate power
C. Feed lub oil to all moving parts
D. Time the spark

Leakage past the piston rings and valve seats in I.C. engines with increase in speed_______________?

A. Increases.
B. Decreases
C. Remains same
D. Unpredictable

For same power and same speed, the flywheel of a four stroke engine as compared to two-stroke I.C. engine will be________________?

A. Smaller
B. Bigger
C. Same size
D. Dependent on other engine parameters

The m.e.p. of a petrol engine first increases as the fuel air ratio is increased and then decreases on further increase in fuel air ratio. The M.E.P is maximum in the zone of________________?

A. Lean mixture
B. Chemically correct mixture
C. Rich mixture
D. Unpredictable

Solid injection in I.C. engines refers to injection of________________?

A. Liquid fuel only
B. Liquid fuel and air
C. Solid fuel
D. Solid fuel and air

The thermal efficiency of a two cycle engine as compared to four cycle engine is_________________?

A. More
B. Less
C. Same
D. More upto some load and then less

Auto-ignition reaction time for petrol engine first decreases with increase in fuel air ratio, reaches a minimum value and then increases with subsequent increase in fuel air ratio. The minimum value occurs in the region of________________?

A. Lean mixture
B. Chemically correct fuel air ratio
C. Rich mixture
D. Unpredictable

Exhaust pipes of engines are covered with insulating marterial in order to_________________?

A. Keep the exhaust pipes warm
B. Reduce formation of condenstae
C. Reduce heat transfer to the engine room
D. Increase engine efficiency