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Automobile Engineering MCQs
2

Automobile Engineering Practice Set-5

May 6, 2021

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Page 1 of 5

1. The damper fluid leakage typically occur from

Upper damper mounting

Clearance between inner and outer tubes of damper

Bottom of damper

Coil spring mounting

2. The order in which effort applied to the steering wheel is transferred to the front wheel is

Steering wheel, tie rod, steering gearbox, steering shaft, steering knuckle, front wheels

Steering wheel, steering shaft, steering gearbox, steering knuckle, tie rod, front wheels

Steering wheel, steering shaft, steering gearbox, tie rod, steering knuckle, front wheels

Steering wheel, steering gearbox, steering shaft, tie rod, steering knuckle, front wheels

3. Which of the following parameter can be adjusted by modifying the tie rod attachment length?

Toe

Steering gear ratio

Camber

Caster

4. The mechanical efficiency (ηm) of an I.C. engine is equal to (where I.P. = Indicated power, B.P. = Brake power and F.P. = Frictional power)

F.P/B.P.

B.P/F.P.

I.P/B.P.

B.P/I.P.

5. The best fuels for compression ignition engines are

Branched chain paraffin

Naphthalene

Aromatics

Straight chain paraffin

6. The tyre rotation is generally done at

1000 km

10,000 km

6000 km

4000 km

7. The most accurate ignition system of a spark ignition engine is

Magneto system

Magneto and electronic system

Battery system

Electronic control unit system

8. The basic purpose of tyre rotation on automobiles is to

None of these

Equalize wear

Avoid ply separation

Get better ride

9. Vulcanizing means

Heating rubber under pressure

Spraying with special paint

Melting rubber while stirring it

None of these

10. The included angle is the sum of the

Camber and S.A.I.

Camber and toe in

Castor and S.A.I.

Camber and castor

Page 2 of 5

11. The rolling resistance is because of the friction between the

None of these

Wheel rim and tyre

Tyre and the road surface

Wheel rim and road surface

12. Which of the following is not an automobile?

Truck

Passenger car

Aeroplane

Motor cycle

13. The purpose of adding pigment to the paint is that it

None of the above

Optimises the viscosity of paint

Gives colour and filling up effect to the paint

Makes paint film hard

14. Caster is a

(C) Either 'A' or 'B'

(A) Forward tilt of the kingpin

(B) Backward tilt of the kingpin

(D) None of these

15. An oil filter bypass valve opens when the

Engine is cold

Engine runs at high speed

Oil filter becomes clogged

Engine overheats

16. The materials used for cylinder block are

Steel and aluminium alloy

Cast iron and steel

Brass and steel

Cast iron and aluminium alloy

17. The purpose of a cylinder head gasket is to

Prevent engine oil from going into combustion chamber

Removes impurities from cylinder head lubricating oil

None of the above

Prevent the combustion gases from leaking from the joint between the cylinder block and the cylinder head

18. During suction stroke, the inside pressure of cylinder is

None of these

Less than the atmospheric pressure

Equal to the atmospheric pressure

More than the atmospheric pressure

19. A battery can be charged by

Adding distilled water

Adding sulphuric acid

Applying a voltage in the same direction to that of charging

Applying voltage in the reverse direction to that of charging

20. The material generally used for cylinder sleeves is

Cast iron

Ceramic

Fibre reinforced plastic

Aluminium

Page 3 of 5

21. The timing belt is attached to the camshaft pulley and

Radiator fan pulley

Timing belt drive pulley

Alternator pulley

Distributor

22. When turning a corner

The front wheels are toeing out

The inside front wheels has a greater angle than the outside wheel

All of the above

The front wheels are turning on different angles

23. 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 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

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

24. Damper is also known as

Radius rod

Torsion bar

Shock absorber

Spring

25. The combustion process in a Diesel engine is a

Constant volume process

Adiabatic process

Constant temperature process

Constant pressure process

26. The fuel pump in the programmed fuel injection (PFI) system is located

On the engine compartment bulkhead

On the distributor mounting in the engine compartment

Between the fuel filler pipe and fuel tank

In the fuel tank

27. A three way catalytic converter

Re-circulates exhaust gases

Reduces N₂, H₂O, and CO₂ emission levels

Removes CO, HC, and NO₂ from the exhaust gases passing through it

Burns fuel vapour gases

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

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

Reduce the brake fluid pressure when the brakes approach their lockup point

Ensure that equal pressure is supplied to the front and rear brakes throughout every braking operation

29. Instead of valves, the ports are used in case of

Four stroke I.C. engines

V6 engines

Two stroke I.C. engines

None of these

30. The starting system includes

A distributor, a starter, and an ignition switch

A battery, a distributor, and an ignition switch

A battery, a starter, and a distributor

A battery, a starter, and an ignition switch

Page 4 of 5

31. A laminated glass upon cracking

Bursts into sharp edged fragments

Sandwiched layer traps the fragments

Breaks into the form of crystals

Bursts into granular pieces

32. When the front wheels of a vehicle are locked during braking, then

Driver loses control over the steering, and the vehicle continues moving in its current direction

Rear tyres skid across the road surface, and the vehicle spins around

Stopping distance becomes extremely long

Front tyres skid across the road surface, and the vehicle spins around

33. The main function of a resonator is that it

Enhances intake efficiency

Regulates the intake air temperature

Reduces the intake air noise

Regulates the intake air flow rate

34. A front stabilizer bar is used to

Provide a softer ride

Increase vehicle load carrying capacity

Control suspension movement and body roll

All of the above

35. The fuel pump of a programmed fuel injection (PFI) system operate for two seconds when the ignition is turned to the start position to

Warm up and lubricate the pump

Pressurise the fuel system before the engine is started

Supplies a large amount of fuel and thereby creates a choke effect

Enable the pump's fault diagnosis function to operate

36. The main characteristics of a maintenance free (MF) battery is that

Recharging of a maintenance free battery is neither required nor possible

A maintenance free battery requires little maintenance during normal use and it is sufficient to add water instead of an electrolyte containing sulphuric acid

A maintenance free battery has a relatively short shelf life when compared with standard batteries

Since it is sealed, the water in maintenance free battery is not lost through evaporation thus accordingly it is not necessary to top up the cells with water

37. The function of an oil control orifice is that it

Regulates the pressure of engine oil supplied by the oil pump for the lubrication of cylinder head mechanism and other purposes

Returns cylinder head lubricating oil to the oil pan at high speed

Turns oil into fine mist for spray lubrication

Removes impurities from cylinder head lubricating oil

38. The ignition in a spark ignition engine takes place when the piston is

Exactly at the T.D.C. position on its compression stroke

Leaving the T.D.C. position on its compression stroke

Approaching the T.D.C position on its exhaust stroke

Approaching the T.D.C. position on its compression stroke

39. An under-inflated tyre will wear the tread most

Near the edges

In the cross direction

In the lateral direction

Near the centre

40. When a gear box has four forward speeds and one reverse speed, it is said to be a

5-speed gear box

3-speed gear box

6-speed gear box

4-speed gear box

Page 5 of 5

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

Headlights are switched on

Headlights and other lights are switched off

Headlights and other electrical devices are switched on

Headlights and other electrical devices are switched off

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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creazione dell'account binance says:
February 13, 2026 at 11:48 am
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binance sign up says:
March 6, 2026 at 6:24 am
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
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Leave a Reply to creazione dell'account binanceCancel reply

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