Correct
Incorrect
✅ The correct answer is option A.
Automobile Engineering MCQs
The torque available at the contact between driving wheels and road is known as
brake effort
tractive effort
clutch effort
none of these
✅ The correct answer is option B.
The co-efficient of rolling resistance for a truck weighing 63 500 N is 0.018. The rolling resistance to the truck is
1.143 N
11.43 N
114.3 N
1143 N
✅ The correct answer is option D.
The compression ratio in petrol engine is kept less than in Diesel engine because
it makes petrol engines lighter
higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition
less compression ratio gives better performance
it is just customary to have less compression ratio in petrol engines
✅ The correct answer is option B.
A clutch is usually designed to transmit maximum torque which is
equal to the maximum engine torque
80 per cent of the maximum engine torque
150 per cent of the maximum engine torque
none of these
✅ The correct answer is option C.
The battery is an electrochemical device, which means battery
makes chemicals by mechanical means
uses chemical action to provide electricity
has curved plates instead of flat plates
does not use an electrolyte
✅ The correct answer is option B.
Positive camber is used to compensate for wheels tilting inward due to the weight of the vehicle.
Yes
No
✅ The correct answer is option A.
The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as
indicator diagram
axial force diagram
valve timing diagram
none of these
✅ The correct answer is option C.
The vehicle ride will be comfortable if
unsprung mass is kept minimum
sprang mass is kept minimum
vehicle mass is kept minimum
all of these
✅ The correct answer is option A.
The cetane number of a Diesel fuel is a measure of
volatility
viscosity
ignition quality
delay peirod
✅ The correct answer is option D.