1. Brake is a device which converts kinetic energy into
(A) Mechanical energy
(B) Heat energy
(C) Electrical energy
(D) Potential energy
2. Force required to stop a vehicle depends on
(A) The deceleration rate
(B) The weight of vehicle
(C) Both (A) and (B)
(D) None of the above
3. Which of the following is not a drum brake?
(A) External contracting brake
(B) Internal expanding brake
(C) Disc brake
(D) All of the above
4. Which of the following brakes is used for hand brake?
(A) External contracting brake
(B) Internal expanding brake
(C) Disc brake
(D) All of the above
5. Brake disc is attached on
(A) Wheel
(B) Axle
(C) Suspension system
(D) Hub
6. Mechanical brake is operated with the help of
(A) Levers
(B) Bell cranks
(C) Cams
(D) All of the above
7. In vacuum brake cylinder chamber consists of
(A) Vacuum valve
(B) Atmospheric valve
(C) Both (A) and (B)
(D) None of the above
8. Hydraulic brake follows the principle
(A) Law of conservation of momentum
(B) Law of conservation of energy
(C) Pascal's law
(D) None of the above
9. In hydraulic brake system master cylinder is used for
(A) Builds up hydraulic pressure to operate the brakes
(B) Maintains constant volume of fluid in the system
(C) Serves as a pump to force air out of the hydraulic system
(D) All of the above
10. 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
11. Hand brake is applied on
(A) Only front wheels
(B) Only rear wheels
(C) Both front and rear wheels
(D) All of the above
12. Which factor is essential for effective brake?
(A) Area of brake linings
(B) Radius of car wheel
(C) Amount of pressure applied to shoe brakes
(D) All of the above
13. In brake system servo action is used for
(A) Amplification of braking forces
(B) Increase friction between shoe and wheel
(C) Transfer of weight during stop
(D) All of the above
14. Power brake is applied by
(A) Electrical energy
(B) Engine vacuum
(C) Air pressure
(D) All of the above
15. Releasing of air from hydraulic brake system is called
(A) Bleeding
(B) Self-energizing
(C) Servo action
(D) Energization
16. In hydraulic brake system which part converts mechanical force to hydraulic pressure?
(A) Master Cylinder
(B) Wheel Cylinder
(C) Brake booster
(D) Brake pedal
17. In hydraulic brake system which part converts hydraulic pressure to mechanical force?
(A) Master Cylinder
(B) Wheel Cylinder
(C) Brake booster
(D) Brake pedal
18. In disc brake which part returns the piston to its original position?
(A) Coil spring
(B) Hydraulic pressure
(C) Rubber ring
(D) Compression spring
19. In hydraulic brake system which valve provides hydraulic pressure to rear wheels prior to front wheels?
(A) Metering Valve
(B) Pressure difference valve
(C) Proportional Valve
(D) Residual pressure check valve
20. In hydraulic brake system which valve provides more fluid to front wheels than rear wheels?
(A) Metering Valve
(B) Pressure difference valve
(C) Proportional Valve
(D) Residual pressure check valve
21. By increasing wheel cylinder diameter braking force can be
(A) Increase
(B) Decrease
(C) Remain same
(D) None
22. Brake used to stop the vehicle in normal driving is called
(A) Service brake
(B) Parking brake
(C) Emergency brake
(D) Ordinary brake
23. At which pressure governor shuts off air compressor?
(A) 35 PSI
(B) 85 PSI
(C) 100 PSI
(D) 135 PSI
24. At which pressure governor switches on the air compressor?
(A) 35 PSI
(B) 85 PSI
(C) 100 PSI
(D) 135 PSI
25. Which valve is used to exit oil and water from air tank from time to time?
(A) Manual Operated Valve
(B) Spit Valve
(C) Relief Valve
(D) Safety Valve
26. In air brake system brake pedal is called
(A) Control Valve
(B) Manual Valve
(C) Spit Valve
(D) Treadle Valve
27. In air brake system brake shoes are expanded with the help of
(A) Wheel Cylinder
(B) Cam lube
(C) S Cam
(D) Power Screw
28. In air brake system disc pads are compressed with the help of
(A) Wheel Cylinder
(B) Cam lube
(C) S Cam
(D) Power Screw
29. In air brake system emergency brake is applied by
(A) Air pressure
(B) Hydraulic pressure
(C) Pneumatic pressure
(D) Spring pressure
30. To apply spring brakes gradually a control handle is used. This handle is called
(A) Modulating Control Valve
(B) Foot valve
(C) Treadle Valve
(D) Spit Valve