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 ignition coil is used to

Step up voltage

Step down voltage

Step down current

Step up current

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

Shot peening

Porous plating

Boring

Honing

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

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

Mixes fuel with air

Returns blow by gases from the crankcase to the intake system

Feeds blow by gases to the exhaust manifold

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

Torque converter

Differential

Flywheel

Clutch

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

It draws heat out of the engine compartment

It cools the engine by blowing air onto the cylinder block

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

It blows air through the radiator when necessary

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

90

900

9000

9

7. The main function of a master cylinder is to

Boost the force applied to brake pedal

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

Adjust the extent of brake pedal free play

Convert brake pedal force into hydraulic pressure

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

Cast iron

Aluminium

Brass

Ceramic

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

Higher

Lower

Depends on fuel quality

Same

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

30°

60°

120°

90°

Page 2 of 4

11. In Spark Ignition Engine

(D) None of these Correct Answer

(C) Both (A) and (B)

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

(A) Only air is introduced into the cylinder

12. The two kinds of piston rings are

Compression and sliding seal rings

Oil scrapper and oil control rings

Compression and oil control rings

Pressure and sealing rings

13. The service brakes employed in cars are generally operated

None of these

Mechanically

Hydraulically

Pneumatically

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

1-2-3-4

1-3-2-4

1-4-3-2

1-3-4-2

15. 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

Indicate the coolant temperature

Prevent the coolant from boiling

16. 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, brake lines, vacuum servo mechanism, master cylinder, brake pads

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

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

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

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

It makes petrol engines lighter

18. 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

19. 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

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

API 50

SAE 30

API SF

SAE20 W50

Page 3 of 4

21. Free pedal play in car clutches is about

60 mm

15 mm

25 mm

40 mm

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

Section height to section width

Wheel diameter to section height

Wheel diameter to section width

Section width to section height

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

Planetary gear

Synchronizer

Hydraulic multi plate clutch

Magnetic clutch

24. 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

Detonation

Priming

Scavenging

Cleaning

25. The discharged lead acid battery has on its plates

Lead sulphate (PbSO₄)

Sulphuric acid (H₂SO₄)

Lead peroxide (PbO₂)

Spongy lead (Pb)

26. 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

Supercharging

Detonation

Scavenging

Auto ignition

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

Contact areas of the tyres

Free plays of the steering wheel

Difference in the toe angles of the left and right wheels

Turning radius of the left and right wheels

28. The exhaust gas from petrol engine contains

Carbon monoxide

All of these

Petrol vapours

Water vapours

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

220bar

250bar

300bar

200bar

30. The basic characteristics of a brake fluid is

A high boiling point

All of these

Low viscosity

Compatibility with rubber and metal parts

Page 4 of 4

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

100°C to 120°C

180°C to 360 °C

70°C to 100°C

120°C to 180°C

32. The piston compression rings are made of

Steel

Cast iron

Bronze

Aluminium

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

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

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

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

6-10

10-15

15-20

25-40

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

Controls the engine's air intake volume

Reduces the engine's air intake noise

Prevents rain water from entering the engine

Prevents dust and other foreign matter from entering the engine

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

None of these

Decreases

Remains the same

Increases

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

Balancer

Stop valve

Release chamber

Relief valve

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

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

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

Delivers improved cornering on dry road surfaces

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

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

Right of the vehicle

Left of the vehicle

Front of the vehicle

Rear of the vehicle

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

1669.4 N

1.6694 N

166.94 N

16.694 N

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 and Mechanics Available Online in 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