The function of oil-control rings is that it

lubricates the cylinder wall by releasing oil from its hole
keeps the cylinder wall lubricated by holding oil in its channel
prevents engine oil from going into the combustion chamber and returns excess lubricating oil off the cylinder wall through the return holes in the piston to the oil pan
maintains a seal and p
✅ The correct answer is option C.

The sequence in which the force is transmitted through a brake system when the brake pedal is depressed is

brake pedal – master cylinder – brake lines – vacuum servo mechanism – brake pads
brake pedal – vacuum servo mechanism – master cylinder – brake lines – brake pads
brake pedal – master cylinder – vacuum servo mechanism – brake lines – brake pads
brake pedal – brake li
✅ The correct answer is option B.

In which of the following conditions, the idle CO percentage should be measured with the vehicle ?

Headlights and other electrical devices are switched off.
Headlights and other electrical devices are switched on.
Headlights and other lights are switched off.
Headlights are switche
✅ The correct answer is option A.