In petrol engines, advancing the spark timing will_______________?

A. Increase the knocking tendency
B. Decrease the knocking tendency
C. Not affect the knocking tendncy
D. Increase or decrease knocking tendency depending on strenght and time of spark

The ignition coil in diesel engines produces voltage of the order of________________?

A. 6 to 12 volts
B. 240 volts
C. 1000 volts
D. 20,000 volts

The essential equipment for producing high vlotage for sparking in petrol engines with battery is_______________?

A. Ignition coil
B. Ignition coil and distributor
C. Ignition coil and condenser
D. Ignition coil and contact breaker

Power impulses from an I.C. engine are somoothed out by__________________?

A. Governor
B. Crank shaft
C. Gear box
D. Flywheel

For low speed operation or for idling in petrol engines, the engine requirements are for_______________?

A. Lean mixture
B. Theoretically correct mixture
C. Rich mixture
D. Any type of mixture

In carburettors, the top of the fuel jet with reference to the level in the float chamber is kept at_________________?

A. Same level
B. Slightly higher level
C. Slightly lower level
D. May be anywhere

In petrol engines, the maximum power is developed corresponding to relative fuel air ratio of________________?

A. 0.85
B. 1
C. 1.1 to 1.3
D. 1.2 to 1.5

The pour point of diesel oil must be_________________?

A. Lower than the coldest atmospheric temperature at which oil is to be pumped
B. Higher than above
C. Has no such relation
D. More than 100°c

In petrol engine, increase of cooling water temperature will_________________?

A. Increase the knocking tendency
B. Decrease the knocking tendecny
C. Not affect the knocking tendency
D. Increase or decrease knocking tendency depedning on strength and time of spark

Ignition timing of a multicylider petrol engine can be adjusted by_________________?

A. Rotating the crank
B. Adjusting the spark plug gap
C. Adjusting ignition coil position
D. Rotating the distributor