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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In the air brake, air pressure is supplied by
A. The engine manifold
B. A compressor
C. The diaphragm valve
D. A condensor
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What is the cause of poor braking?
A. Wet brake lining
B. Burntor worn out linings
C. Both are correct
D. None of the above
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What is the function of brake lining?
A. To increase the co-efficient of friction
B. To prevent wearing away of the metal
C. Both are correct
D. None of the above
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Which of the following is a type of brake?
A. Air pressure brake
B. Hydraulic disc brake
C. Vacuum assisted brake
D. All are correct
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Tandem master cylinder consists of
A. One cylinder and one reservoir
B. Two cylinders and one reservoir
C. One cylinder and two reservoirs
D. Two cylinders and two reservoirs
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In disc brake, the disc is attached to the
A. Wheel
B. Axle
C. Suspension system
D. None of the above
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What is the cause of noisy brakes fault?
A. Bent back plate
B. Dirty lining
C. Drum distorted
D. All are correct
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Disk brakes self-adjust when lining wear allows the piston to . . . . . . . .
A. Slide outward of the seal and take new position closer to the disc
B. Slide inward of the seal and take new position closer to the disc
C. Slide both sides of the seal and take new position closer to the disc
D. None of the above
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Breaking is produced by the frictional effect between the brake drum and
A. Wheel cylinder piston
B. Brake shoes
C. Wheel studs
D. Wheel rim
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The advantage of a tandem master cylinder is that it
A. Enhances safety by serving two independent lines in a divided-line brake circuit
B. Enhances safety by activating the brakes using vacuum pressure in the event of brake fluid loss
C. Supplies equal fluid pressures to each line of a divided-line brake circuit, thereby preventing the brakes from dragging on one side
D. Increases the brake fluid pressure to reduce the force required to depress the brake pedal
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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 the front wheels?
A. 3.4 m/s2
B. 2.4 m/s2
C. 1.4 m/s2
D. 4.4 m/s2
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The brake bleeding process removes . . . . . . . . from the hydraulic brake system.
A. Air
B. Vacuum
C. Excess fluid
D. Excess pressure
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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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Vacuum tank is connected to the valve of brake booster through a . . . . . . . . pipe?
A. Rubber
B. Steel
C. Copper
D. None of these
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Servo action is to
A. The amplification of braking forces
B. Increase force of friction between shoe and wheel
C. Transfer of weight during stop
D. All of the above
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During braking, the brake shoe is moved outward to force the lining against the
A. Wheel piston or cylinder
B. Anchor pin
C. Brake drum
D. Wheel rim or axle
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Removal of air bubbles present in the braking system is called
A. Blooding
B. Bleeding
C. Tunning
D. None of these
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The process of removing all of the old brake fluid from the hydraulic system is called
A. Bleeding
B. Cleaning
C. Changing
D. Flushing
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The heat dissipates quickly in drum brakes than that in disc brakes.
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