Automobile Engineering MCQs Archives

251. 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 cools the engine by blowing air onto the cylinder block

it draws heat out of t

✅ The correct answer is option A.

252. The octane rating of petrol commerically available is

85-95

95-100

100-110

110-125

✅ The correct answer is option A.

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

6-Oct

Oct-15

15-25

25-40

✅ The correct answer is option C.

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

near the centre

near the edges

in the lateral direction

in the cross direction

✅ The correct answer is option B.

255. The function of a carburettor is to control the amount and ratio of air-fuel mixture.

TRUE

FALSE

✅ The correct answer is option A.

256. The specific gravity of Diesel is about

0.65

0.75

0.85

0.95

✅ The correct answer is option C.

257. The basic purpose of tyres is to

grip the road and provide good traction

substitute for springs

act as brake

none of these

✅ The correct answer is option A.

258. Wheel base of a vehicle is the

distance between the centres of the front and rear wheels

distance between the centres of the front tyres

distance between the centres of the rear tyres

extreme length of the

✅ The correct answer is option A.

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

aluminium

ceramic

brass

cast iron

✅ The correct answer is option D.

260. When the vehicle is at rest, the clutch is in engaged position.

Correct

Incorrect

✅ The correct answer is option A.