Skip to content

VideRime Online Learning

Search for:

Home
GK/GA MCQs
Questions?
- Ask Question
- Questions
Direct Links
Submit Article
Contact Us
Membership Registration
Login
Signup Now

Home
GK/GA MCQs
Questions?
- Ask Question
- Questions
Direct Links
Submit Article
Contact Us
Membership Registration
Login
Signup Now

Automobile Engineering MCQs
0

Automobile Engineering Practice Set-4

May 4, 2021

Show paginator

Hide paginator

25%

Page 1 of 4

1. The function of a radiator fan in the cooling system is that

It blows air through the radiator when necessary

It is turned by wind force as the vehicle moves forward, and its rotation drives the water pump

It draws heat out of the engine compartment

It cools the engine by blowing air onto the cylinder block

2. The main task of a battery in automobiles is to

Supply electricity to the vehicle's electrical system at all times while the engine is running

Supply a large amount of power to turn the starter motor when the engine is being started

Supply electricity to the alternator

Act as a reservoir or stabilizer of electricity

3. The valve overlap in four stroke petrol engines is approximately

60°

30°

120°

90°

4. In a forced feed lubrication system, the device used to guard against excessive oil pressure, is known as

Stop valve

Release chamber

Relief valve

Balancer

5. Free pedal play in car clutches is about

60 mm

25 mm

40 mm

15 mm

6. The service brakes employed in cars are generally operated

Mechanically

None of these

Hydraulically

Pneumatically

7. The basic characteristics of a brake fluid is

All of these

A high boiling point

Compatibility with rubber and metal parts

Low viscosity

8. In order to implement gear changes in the gear unit of an automatic transmission, a ___________ is used.

Hydraulic multi plate clutch

Magnetic clutch

Planetary gear

Synchronizer

9. The discharged lead acid battery has on its plates

Lead peroxide (PbO₂)

Spongy lead (Pb)

Sulphuric acid (H₂SO₄)

Lead sulphate (PbSO₄)

10. The frequency of flashing of light per minute in a direction (side turn) indicator is about

9

900

90

9000

Page 2 of 4

11. The purpose of turning radius gauges is to measure the

Difference in the toe angles of the left and right wheels

Free plays of the steering wheel

Contact areas of the tyres

Turning radius of the left and right wheels

12. The aspect ratio (expressed in percentage) of the tyre is defined as the ratio of

Wheel diameter to section height

Wheel diameter to section width

Section width to section height

Section height to section width

13. The purpose of a balancer shaft is to

Increase inertia force of the rotating crankshaft

Adjusts the timing of the intake and exhaust valve openings

Balance the timing in the movement of the two groups of pistons

Reduce vibrations caused by the crankshaft rotation

14. With the increase of battery temperature, the specific gravity of electrolyte

Increases

None of these

Remains the same

Decreases

15. The process of removing the burnt gases from the engine cylinder by the fresh charge coming into the engine cylinder from the crankcase, is known as

Priming

Scavenging

Cleaning

Detonation

16. The device for smoothening out the power impulses from the engine is called

Differential

Clutch

Flywheel

Torque converter

17. The compression ratio in petrol engine is kept less than in Diesel engine because

It makes petrol engines lighter

It is just customary to have less compression ratio in petrol engines

Higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition

Less compression ratio gives better performance

18. The gradient resistance to a vehicle having a mass of 980 kg moving on an incline of 10° is

166.94 N

16.694 N

1.6694 N

1669.4 N

19. The reconditioning process used to give cylinder bore surfaces a crosshatch pattern, is known as

Shot peening

Boring

Honing

Porous plating

20. The function of positive crankcase ventilation (PCV) system is that it

Feeds blow by gases to the exhaust manifold

Returns blow by gases from the crankcase to the intake system

Promotes combustion by creating a swirling movement in the air-fuel mixture

Mixes fuel with air

Page 3 of 4

21. The firing order for an opposed four cylinder l.C. engine is

1-3-4-2

1-4-3-2

1-2-3-4

1-3-2-4

22. The boiling point of Diesel fuel is in the range of

180°C to 360 °C

100°C to 120°C

120°C to 180°C

70°C to 100°C

23. The process of supplying the intake air to the engine cylinder at a pressure greater than the pressure of the surrounding atmosphere is known as

Detonation

Scavenging

Supercharging

Auto ignition

24. The heat transfer from coolant to air in the radiator of an automobile engine takes place by

Conduction, convection and radiation

Convention only

Convection and radiation

Radiation only

25. The ignition coil is used to

Step down voltage

Step down current

Step up voltage

Step up current

26. The caster is called positive when the top of the king pin is inclined to the

Right of the vehicle

Rear of the vehicle

Front of the vehicle

Left of the vehicle

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

Brake pedal, master cylinder, vacuum servo mechanism, brake lines, brake pads

Brake pedal, master cylinder, brake lines, vacuum servo mechanism, brake pads

Brake pedal, vacuum servo mechanism, master cylinder, brake lines, brake pads

Brake pedal, brake lines, vacuum servo mechanism, master cylinder, brake pads

28. The self ignition temperature of Diesel as compared to petrol is

Same

Lower

Depends on fuel quality

Higher

29. The piston compression rings are made of

Bronze

Cast iron

Aluminium

Steel

30. The exhaust gas from petrol engine contains

Water vapours

All of these

Petrol vapours

Carbon monoxide

Page 4 of 4

31. The basic purpose of a four wheel drive (4WD) system is that it

Ensures that effective braking can be performed, even on slippery surfaces

Eliminates the need of snow tyres, tyre chains, etc.

Ensures effective transmission of engine torque to all four wheels, even on slippery road surfaces

Delivers improved cornering on dry road surfaces

32. The compression ratio for Diesel engines usually lies in the range of

15-20

6-10

25-40

10-15

33. In Spark Ignition Engine

(B) The mixture of air and fuel is introduced into the cylinder from carburettor

(C) Both (A) and (B)

(A) Only air is introduced into the cylinder

(D) None of these Correct Answer

34. The natural gas is compressed in a CNG cylinder at a pressure of

220bar

300bar

250bar

200bar

35. The purpose of a thermostat in an engine cooling system is to

Allow the engine to warm up quickly

Pressurise the system to raise the boiling point

Prevent the coolant from boiling

Indicate the coolant temperature

36. In aluminium cylinder blocks, the cylinder liners are made of

Aluminium

Ceramic

Brass

Cast iron

37. The two kinds of piston rings are

Pressure and sealing rings

Compression and oil control rings

Oil scrapper and oil control rings

Compression and sliding seal rings

38. Which of the following indicates multi-grade oil?

SAE20 W50

API SF

API 50

SAE 30

39. The main purpose of an engine's air cleaner is that it

Prevents dust and other foreign matter from entering the engine

Prevents rain water from entering the engine

Controls the engine's air intake volume

Reduces the engine's air intake noise

40. The main function of a master cylinder is to

Adjust the extent of brake pedal free play

Boost the force applied to brake pedal

Convert brake pedal force into hydraulic pressure

Ensure that all the wheel brakes are supplied with the same amount of fluid pressure

Loading...

Share this Now with Friends:

WhatsApp
Telegram
More

Related

Tags: Automobile Automobile Engineering MCQs Engineering Mechanical Engineering

VideRime

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.

Leave a ReplyCancel reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Ads by Google

Recent Posts

Key Benefits of Phd in any Discipline
[PDF] Basic Civil Engineering PDF by S.S. Bhavikatti
Best 20 trending Topics for final year major projects in Civil Engineering
Explain different types of road bridges through neat sketches
What are the best video editing softwares
Explain the working of marshalling yard through neat diagram
Classification of Indian Railways in detail
What do you mean by coning of wheels? Also discuss its advantages.

Membership Registration

Secured Payment

Protection

DMCA.com Protection Status

VideRime.com is the leading online Learning portal. ©2026 All Rights Reserved.

Login Now

Google

OR

* Username

*

* Password

*

Remember me

Forgot Password

Don't have account? Register Now

VideRime Registration Form

* Username

*

* Username

*

* Last Name

*

* Email Address

*

* Confirm Email Address

*

* Password

*

Strength: Very Weak

(Use Cropper to set image and
use mouse scroller for zoom image.)

Already have an account? Login