Automobile Engineering Practice Set-8

Page 1 of 3

1. Which of the following is not a part of the chassis?

Wheels

Seats

Steering system

Front axle

2. The crankcase dilution means

Dilution of fuel in the crankcase

Dilution of oil by water in the crankcase

Dilution of mixture passing through crankcase in two stroke engines

Dilution of lubrication oil by fuel in the crankcase

3. Valve overlap is the number of degrees of camshaft rotation during which

(c) Both 'A' and 'B'

(b) Both valves are open

(d) None of these

(a) Both valves are closed

4. The component that is responsible for converting the rotation of the steering wheel into lateral motion is the

Steering gearbox

Tie rod

Steering shaft

Steering wheel

5. In a four cylinder inline engine, the number of firing strokes in one revolution of the crank is

3

4

2

1

6. The oil pump is driven by the

Alternator shaft

Crankshaft directly

Camshaft

Crankshaft via drive belt

7. In a Diesel engine, the fuel is ignited by

None of these

An electric spark

The hot exhaust

The heat of compression

8. In an engine, the temperature of the piston will be more at the

Skirt of the piston

Piston walls

Piston rings

Crown of the piston

9. The engine oil is stored in _________ when the engine is not running.

Oil pan

Separate oil tank

Oil pump

Cylinder head

10. The condition that results in large quantities of CO emission is

Insufficient fuel during combustion

Insufficient air during combustion

Low temperature combustion

High temperature combustion

Page 2 of 3

11. What type of bearing is used for main bearings and connecting rod bearings?

Plain bearings

Ball bearings

Needle roller bearing

Taper roller bearing

12. The function of anti-lock brake system (ABS) is that is

Maintains directional control during braking by preventing the wheels from locking

Minimizes the brake fade

Prevents nose dives during braking and thereby postpones locking of the wheels

Reduces the stopping distance

13. The condition that causes vapour locking in a brake system is

An excessively high engine speed on a downhill road

Overheating of the fluid due to frequent brake application

Keeping the vehicle without use for an extended period

Overcooling of the brakes during high speed driving

14. The coefficient of rolling resistance for a truck weighing 63,500 N is 0.018. The rolling resistance to the truck is

114.3 N

1.143 N

11.43 N

1143 N

15. Which one of the following statements correctly describes the construction of a planetary gear type differential?

The internal gear is fixed to the planetary gear.

The six planetary pinions rotate in constant mesh with the internal gears.

Each planetary pinion gear meshes with both the central gear and the internal gear.

One drive shaft is splined to the central gear and the other to the planetary gear.

16. The main cause for the change in engine oil viscosity is

Contamination

Vibration

Humidity

Temperature

17. A maintenance free battery

Has lead-calcium plate grid

Does not contain acid

Does not contain water

Has lead-antimony plate grid

18. The camshaft of a four stroke Diesel engine running at 1000 rpm will run at

1000 rpm

4000 rpm

2000 rpm

500 rpm

19. The Diesel engines as compared to petrol engines require

Same size of flywheel

No flywheel

Bigger flywheel

Smaller flywheel

20. In a four wheel drive (4WD), the numbers of gear boxes are

4

1

3

2

Page 3 of 3

21. The sequence order of events in a four stroke engine is

Exhaust compression power suction

Suction compression power exhaust

Suction power compression exhaust

Suction exhaust power compression

22. The operation of removing trapped air from the hydraulic braking system is known as

Tapping

Bleeding

Cleaning

Trapping

23. The rating of C.I. engine fuel (Diesel) is given by

None of these

Octane number

Cetane number

Performance number

Automobile Engineering Practice Set-8

Related

Leave a ReplyCancel reply

Secured Payments

Protection

Automobile Engineering Practice Set-8

Share this Now with Friends:

Related

Leave a ReplyCancel reply

Secured Payments

Protection