Questions and answers for exam Preparation

MCQs

Total Questions : 1197 | Page 2 of 120 pages

Question 11. The function of a proportioning control valve (PCV) in a brake system is to

Ensure that equal pressure is supplied to the front and rear brakes throughout every braking operation
Reduce the brake fluid pressure when the brakes approach their lockup point
Cause less brake fluid pressure to act on the front brakes than on the rear brakes when the fluid pressure exceeds a predetermined level
Cause less brake fluid pressure to act on the rear brakes than on the front brakes when the fluid pressure exceeds a predetermined level

Discuss Question

Answer: Option D. -> Cause less brake fluid pressure to act on the rear brakes than on the front brakes when the fluid pressure exceeds a predetermined level

Question 12. The two rows of cylinders in a 'V' type engine are generally arranged at

45°
60°
90°
130°

Discuss Question

Answer: Option B. -> 60°

Question 13. During suction stroke, the inside pressure of cylinder is

More than the atmospheric pressure
Less than the atmospheric pressure
Equal to the atmospheric pressure
None of these

Discuss Question

Answer: Option B. -> Less than the atmospheric pressure

Question 14. The function of an oil control orifice is that it

Returns cylinder head lubricating oil to the oil pan at high speed
Turns oil into fine mist for spray lubrication
Regulates the pressure of engine oil supplied by the oil pump for the lubrication of cylinder head mechanism and other purposes
Removes impurities from cylinder head lubricating oil

Discuss Question

Answer: Option C. -> Regulates the pressure of engine oil supplied by the oil pump for the lubrication of cylinder head mechanism and other purposes

Question 15. The piston compression rings are made of

Cast iron
Steel
Aluminium
Bronze

Discuss Question

Answer: Option A. -> Cast iron

Question 16. The air gap between the central electrode and ground (or side) electrode of a spark plug is around

0.2 mm
0.5 mm
1 mm
1.5 mm

Discuss Question

Answer: Option C. -> 1 mm

Question 17. The brake warning light warns the driver of

Water in the master cylinder
Air in the hydraulic system
Failure of the primary or secondary circuit of hydraulic system
Power brake failure

Discuss Question

Answer: Option C. -> Failure of the primary or secondary circuit of hydraulic system

Question 18. In a single dry plate clutch, torsional vibrations are absorbed by

Coil springs known as torsional springs
Cushion springs
Central hub
Clutch pedal

Discuss Question

Answer: Option A. -> Coil springs known as torsional springs

Question 19. The rigid suspension is beneficial when

It is desired to reduce the unsprung mass
It is desired to have more flexibility in design
It is desired to improve tyre to ground contact characteristics
Large changes in load make it necessary to have a large suspension stroke

Discuss Question

Answer: Option D. -> Large changes in load make it necessary to have a large suspension stroke

Question 20. The lubrication oil flow in an engine is in the order as

Oil strainer, oil pump, relief valve, oil filter, cylinder block, cylinder head and oil pan
Oil pump, oil strainer, relief valve, oil filter, cylinder block, cylinder head and oil pan
Oil strainer, oil filter, relief valve, oil pump, cylinder block, cylinder head and oil pan
Oil strainer, oil pump, relief valve, oil filter, cylinder head, cylinder block and oil pan

Discuss Question

Answer: Option A. -> Oil strainer, oil pump, relief valve, oil filter, cylinder block, cylinder head and oil pan