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Automobile Engineering Objective Questions { Braking System }



43. Which of the following phrases correctly describes the function of the brake?
A. To change speed
B. To stop in emergency
C. To couple the engine to the road wheels
D. To decelerate the automobile
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44. If the car is moving on the level road at a speed of 50 km/h has a wheelbase 4 m, a distance of C. G. from ground 800 mm and distance from rear wheels is 1.2 m. Coefficient of friction is 0.8. What is the retardation if the brakes are applied to all wheels?
A. 7.8 m/s2
B. 6.8 m/s2
C. 5.8 m/s2
D. 4.8 m/s2
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45. The ventilated disc brake is a disc brake in which
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
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46. What is meant by ABS?
A. Avoid brake system
B. Actual brake system
C. Anti-lock braking system
D. Automatic brake system
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47. The parking brakes fall into which of the following classifications?
A. Mechanical
B. Pneumatic
C. Hydraulic
D. Air-over-hydraulics
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48. The brake lining consists mainly of
A. Asbestos
B. Copper
C. Cast iron
D. Aluminium
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49. Following is (are) the type(s) of shape(s) for the pads of caliper disk brakes
A. Circular
B. Annular
C. Both A and B
D. None of the above
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