Automobile Engineering MCQs

[A]. 25

[B]. 45

[C]. 70

[D]. 90

[A]. the tread grooves pass air between the tyre and road surface, thereby preventing tyre from overheating

[B]. the crests between the tread grooves absorb road noise

[C]. in wet conditions, the tread grooves expel water that is drawn between the tyre and road surface

[D]. the tread pattern protects the tyre’s inner carcass from small stones and pieces of glass

[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

[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

[A]. tendency to assume toe-out orientation

[B]. generation of a braking effect at tight corners

[C]. poor recovery of the steering wheel after making a turn

[D]. the vehicle to pull to the side of lesser inclination

[A]. Ballbearings

[B]. Plain bearings

[C]. Needle roller bearing

[D]. Taper roller bearing

[A]. 1-2-3-4

[B]. 1-3-4-2

[C]. 1-2-4-3

[D]. 1-3-2-4

[A]. Correct

[B]. Incorrect

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[A]. detonation

[B]. ignition

[C]. pre-ignition

[D]. rumble

[A]. 30°

[B]. 60°

[C]. 90°

[D]. 120°