Discussion
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- Question
The petrol engines are also known as
Options- A. spark ignition (S.I.) engines
- B. compression ignition (C.I.) engines
- C. steam engines
- D. none of these
- Correct Answer
- spark ignition (S.I.) engines
- 1. In automobiles G.V.W. refers to
Options- A. gross vehicle width
- B. gross vehicle weight
- C. gross vehicle wheel base
- D. gross vehicle wheel track Discuss
- 2. In a ventilated disc brake,
Options- A. a duct directs air towards the caliper for cooling while the vehicle is moving
- B. caliper is covered with cooling fins
- C. disc contains many small holes for optimum cooling performance
- D. disc contains radial vanes between its rubbing surfaces for optimum cooling performance Discuss
- 3. The oil pump is driven by the
Options- A. camshaft
- B. alternator shaft
- C. crankshaft via drive belt
- D. crankshaft directly Discuss
- 4. A traction control system (TCS) in automobiles controls the
Options- A. vibrations on the steering wheel
- B. engine power during acceleration
- C. torque that is transmitted by the tyres to the road surface
- D. stopping distance in case of emergency Discuss
- 5. The compression ratio in petrol engine is kept less than in Diesel engine because
Options- A. it makes petrol engines lighter
- B. higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition
- C. less compression ratio gives better performance
- D. it is just customary to have less compression ratio in petrol engines Discuss
- 6. If the level of tension in the belt is too high, it can result in a loss of power or in bending of the rotating shaft or crankshaft.
Options- A. Correct
- B. Incorrect Discuss
- 7. If the air-fuel mixture ignites before the spark takes place at spark plug, the condition is called
Options- A. detonation
- B. ignition
- C. pre-ignition
- D. rumble Discuss
- 8. In a spark plug, when the temperature of the central electrode exceeds a certain temperature, any carbon that has adhered will be burnt off, and the temperature at which this burning off carbon starts is referred to as the self cleaning temperature.
Options- A. Correct
- B. Incorrect Discuss
- 9. The difference between DOT 3 and DOT 4 brake fluids is
Options- A. DOT 4 fluid has a higher boiling point than DOT 3 fluid
- B. DOT 4 fluid has a lower boiling point than DOT 3 fluid
- C. DOT 3 and DOT 4 fluids have the same boiling point, but DOT 4 fluid has a longer service life
- D. DOT 4 fluid is more resistant to freezing than DOT 3 fluid Discuss
- 10. The coefficient of friction for the clutch facing is approximately
Options- A. 0.1
- B. 0.4
- C. 0.8
- D. 1.2 Discuss
Automobile Engineering problems
Search Results
Correct Answer: gross vehicle weight
Correct Answer: disc contains radial vanes between its rubbing surfaces for optimum cooling performance
Correct Answer: crankshaft directly
Correct Answer: torque that is transmitted by the tyres to the road surface
Correct Answer: higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition
Correct Answer: Correct
Correct Answer: pre-ignition
Correct Answer: Correct
Correct Answer: DOT 4 fluid has a higher boiling point than DOT 3 fluid
Correct Answer: 0.4
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