25O MULTIPLE CHOICE QUESTIONS AND ANSWERS
1. What is the primary purpose of a vehicle's braking system?
A. To accelerate the vehicle
B. To slow or stop the vehicle by converting kinetic energy to heat
C. To improve fuel economy
D. To prevent tire wear
✓ Answer: B
2. Which type of brake uses hydraulic pressure to push pistons against a
rotating disc?
A. Drum brake
B. Disc brake
C. Band brake
D. Shoe brake
✓ Answer: B
3. What fluid is used in most automotive hydraulic brake systems?
A. Motor oil
B. Transmission fluid
C. DOT-rated brake fluid
D. Power steering fluid
✓ Answer: C
4. What does DOT stand for in relation to brake fluid?
A. Department of Transportation
B. Division of Technology
C. Disc or Traction
D. Dynamic Operating Temperature
✓ Answer: A
,5. Which DOT brake fluid specification has the highest dry boiling point?
A. DOT 2
B. DOT 3
C. DOT 4
D. DOT 5.1
✓ Answer: D
6. What is the main difference between DOT 5 and DOT 3/4 brake fluid?
A. DOT 5 is petroleum-based
B. DOT 5 is silicone-based and does not absorb moisture
C. DOT 5 has a lower boiling point
D. DOT 5 is only used in motorcycles
✓ Answer: B
7. Brake fade is most commonly caused by:
A. Overheating of brake components
B. Underinflated tires
C. Worn wheel bearings
D. Low power steering fluid
✓ Answer: A
8. Which component in a drum brake pushes the brake shoes outward?
A. Master cylinder
B. Wheel cylinder
C. Caliper piston
D. Proportioning valve
✓ Answer: B
9. A vehicle pulls to one side when braking. The MOST likely cause is:
A. Low brake fluid
B. A seized or stuck caliper on one side
C. Worn wiper blades
D. Low engine oil
✓ Answer: B
10. What is the function of the master cylinder in a brake system?
A. It stores brake fluid
B. It converts mechanical pedal force into hydraulic pressure
C. It prevents wheel lockup
D. It adjusts brake shoe tension
, ✓ Answer: B
11. A dual-circuit (split) brake system is designed to:
A. Provide extra braking force on the rear axle
B. Allow one circuit to remain functional if the other fails
C. Increase pedal travel
D. Reduce brake fluid temperature
✓ Answer: B
12. What is the purpose of a proportioning valve in a brake system?
A. To increase front brake pressure
B. To limit rear brake pressure and prevent rear wheel lockup
C. To boost pedal feel
D. To bleed air from the system
✓ Answer: B
13. Brake fluid should be flushed periodically because:
A. It evaporates quickly
B. It absorbs moisture over time, lowering its boiling point
C. It thickens at cold temperatures
D. It causes corrosion in the fuel system
✓ Answer: B
14. Which of the following is a symptom of a leaking wheel cylinder?
A. Hard brake pedal
B. Brake fluid on the inside of the drum or wheel
C. Squealing from front brakes
D. Increased stopping distance only
✓ Answer: B
15. What is the minimum recommended rotor thickness specification
called?
A. Original equipment thickness
B. Discard thickness
C. Wear indicator limit
D. Factory spec
✓ Answer: B
16. Rotor runout is measured using a:
A. Torque wrench
B. Dial indicator
, C. Micrometer
D. Feeler gauge
✓ Answer: B
17. Excessive rotor runout typically causes:
A. Brake fade
B. Pedal pulsation
C. Soft pedal
D. Brake pull
✓ Answer: B
18. What tool is used to measure rotor thickness variation (parallelism)?
A. Caliper gauge
B. Outside micrometer
C. Dial indicator
D. Thickness gauge
✓ Answer: B
19. Which brake system component is responsible for self-adjusting drum
brakes during reverse stops?
A. The wheel cylinder
B. The adjuster screw mechanism
C. The return spring
D. The backing plate
✓ Answer: B
20. A spongy or soft brake pedal most likely indicates:
A. Worn brake pads
B. Air in the hydraulic system
C. A seized caliper
D. Worn rotors
✓ Answer: B
21. To bleed brakes on a conventional system, the correct order is
typically:
A. Nearest to farthest from master cylinder
B. Farthest to nearest from master cylinder
C. Front first, then rear
D. Right side then left side
✓ Answer: B
1. What is the primary purpose of a vehicle's braking system?
A. To accelerate the vehicle
B. To slow or stop the vehicle by converting kinetic energy to heat
C. To improve fuel economy
D. To prevent tire wear
✓ Answer: B
2. Which type of brake uses hydraulic pressure to push pistons against a
rotating disc?
A. Drum brake
B. Disc brake
C. Band brake
D. Shoe brake
✓ Answer: B
3. What fluid is used in most automotive hydraulic brake systems?
A. Motor oil
B. Transmission fluid
C. DOT-rated brake fluid
D. Power steering fluid
✓ Answer: C
4. What does DOT stand for in relation to brake fluid?
A. Department of Transportation
B. Division of Technology
C. Disc or Traction
D. Dynamic Operating Temperature
✓ Answer: A
,5. Which DOT brake fluid specification has the highest dry boiling point?
A. DOT 2
B. DOT 3
C. DOT 4
D. DOT 5.1
✓ Answer: D
6. What is the main difference between DOT 5 and DOT 3/4 brake fluid?
A. DOT 5 is petroleum-based
B. DOT 5 is silicone-based and does not absorb moisture
C. DOT 5 has a lower boiling point
D. DOT 5 is only used in motorcycles
✓ Answer: B
7. Brake fade is most commonly caused by:
A. Overheating of brake components
B. Underinflated tires
C. Worn wheel bearings
D. Low power steering fluid
✓ Answer: A
8. Which component in a drum brake pushes the brake shoes outward?
A. Master cylinder
B. Wheel cylinder
C. Caliper piston
D. Proportioning valve
✓ Answer: B
9. A vehicle pulls to one side when braking. The MOST likely cause is:
A. Low brake fluid
B. A seized or stuck caliper on one side
C. Worn wiper blades
D. Low engine oil
✓ Answer: B
10. What is the function of the master cylinder in a brake system?
A. It stores brake fluid
B. It converts mechanical pedal force into hydraulic pressure
C. It prevents wheel lockup
D. It adjusts brake shoe tension
, ✓ Answer: B
11. A dual-circuit (split) brake system is designed to:
A. Provide extra braking force on the rear axle
B. Allow one circuit to remain functional if the other fails
C. Increase pedal travel
D. Reduce brake fluid temperature
✓ Answer: B
12. What is the purpose of a proportioning valve in a brake system?
A. To increase front brake pressure
B. To limit rear brake pressure and prevent rear wheel lockup
C. To boost pedal feel
D. To bleed air from the system
✓ Answer: B
13. Brake fluid should be flushed periodically because:
A. It evaporates quickly
B. It absorbs moisture over time, lowering its boiling point
C. It thickens at cold temperatures
D. It causes corrosion in the fuel system
✓ Answer: B
14. Which of the following is a symptom of a leaking wheel cylinder?
A. Hard brake pedal
B. Brake fluid on the inside of the drum or wheel
C. Squealing from front brakes
D. Increased stopping distance only
✓ Answer: B
15. What is the minimum recommended rotor thickness specification
called?
A. Original equipment thickness
B. Discard thickness
C. Wear indicator limit
D. Factory spec
✓ Answer: B
16. Rotor runout is measured using a:
A. Torque wrench
B. Dial indicator
, C. Micrometer
D. Feeler gauge
✓ Answer: B
17. Excessive rotor runout typically causes:
A. Brake fade
B. Pedal pulsation
C. Soft pedal
D. Brake pull
✓ Answer: B
18. What tool is used to measure rotor thickness variation (parallelism)?
A. Caliper gauge
B. Outside micrometer
C. Dial indicator
D. Thickness gauge
✓ Answer: B
19. Which brake system component is responsible for self-adjusting drum
brakes during reverse stops?
A. The wheel cylinder
B. The adjuster screw mechanism
C. The return spring
D. The backing plate
✓ Answer: B
20. A spongy or soft brake pedal most likely indicates:
A. Worn brake pads
B. Air in the hydraulic system
C. A seized caliper
D. Worn rotors
✓ Answer: B
21. To bleed brakes on a conventional system, the correct order is
typically:
A. Nearest to farthest from master cylinder
B. Farthest to nearest from master cylinder
C. Front first, then rear
D. Right side then left side
✓ Answer: B
