Automobile Engineering MCQs

[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]. 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]. 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]. 25

[B]. 45

[C]. 70

[D]. 90

[A]. 0.2 mm

[B]. 0.5 mm

[C]. 1 mm

[D]. 1.5 mm

[A]. SAE 30

[B]. API SF

[C]. SAE 20 W-50

[D]. API 50

[A]. seat belt

[B]. brake

[C]. airbag

[D]. steering

[A]. camber

[B]. caster

[C]. toe-in

[D]. toe-out

[A]. appears milky

[B]. becomes foamy

[C]. turns black

[D]. none of these

[A]. gross vehicle width

[B]. gross vehicle weight

[C]. gross vehicle wheel base

[D]. gross vehicle wheel track