231. The instrument used to check specific gravity of acid in a battery is
hydrometer
hygrometer
anemometer
multimeter
✅ The correct answer is option A.
Automobile Engineering MCQs
232. The ignition in a spark ignition engine takes place when the piston is
exactly at the T.D.C. position on its compression stroke
approaching the T.D.C. position on its compression stroke
leaving the T.D.C. position on its compression stroke
approaching the T.D.C
✅ The correct answer is option B.
233. When the engine speed increases, the ignition timing must be advanced.
Yes
No
✅ The correct answer is option A.
234. The camshaft is driven by the crankshaft via the timing belt.
Correct
Incorrect
✅ The correct answer is option A.
235. The advantage of a tubeless tyre over tube type tyre is
slow air leakage
better fuel efficiency
less chances of running flat
all of these
✅ The correct answer is option D.
236. The heat transfer from coolant to air in the radiator of an automobile engine takes place by
radiation only
convention only
convection and radiation
conduction, convection
✅ The correct answer is option C.
237. If clearance volume of I.C. engines is increased, the compression ratio will
increase
decrease
remain constant
be doubled
✅ The correct answer is option B.
238. The parking brakes employed in vehicles are operated
mechanically
hydraulically
pneumatically
none of these
✅ The correct answer is option A.
239. The petrol engine works on
Otto cycle
Carnot cycle
Diesel cycle
Rankine cycle
✅ The correct answer is option A.
240. The maximum torque multiplication ratio in a torque converter is about
2.5
10
25
40
✅ The correct answer is option A.