A5 Brakes Test
Time Remaining: 01:15:00
1. During a brake inspection it is noticed that one brake pad is worn more than the other. Which of the following is LEAST likely to cause this type of brake pad wear?
2. The red brake warning light is illuminated on the instrument panel of a vehicle with four wheel disc brakes. Which of these is LEAST likely to cause this warning light to illuminate?
3. A vehicle's right brake light is out. All the other lights function normally. Which of the following should the technician inspect first when diagnosing this circuit?
4. The manufacturer recommends a burnishing procedure after installing new brake pads. Technician A says this is accomplished by repeating several high-speed stops. Technician B says this process includes light braking and a brief cool down period between stops. Who is correct?
5. The rubber gasket in the master cylinder reservoir cap is deformed and leaking. Which of the following is causing this deformation?
6. Two technicians are discussing ABS hydraulic modulators. Technician A says the inlet valve is normally closed. Technician B says the outlet valve is normally open. Who is correct?
7. Technician A says electronic stability control systems require four wheel speed sensors. Technician B says the telltale lamp will flash when the ESC system is activated. Who is correct?
9. The inner most brake pad on a vehicle's left front brake is excessively worn. The outside pad has little wear. Which of the following has caused this uneven brake pad wear?
10. A vehicle's TCS warning light flashes intermittently while driving in poor weather conditions. Technician A says there is likely an intermittent electrical fault in the system. Technician B says this is normal. Who is correct?
12. After coming to a complete stop the brake pedal fades to the floorboard. Which of the following is causing this condition?
13. Technician A says if a brake drum has small cracks along its inside lining it should be replaced. Technician B says if a brake drum has minor pitting along its inside lining it may be resurfaced. Who is correct?
14. The brake shoes on the rear of a vehicle are worn and must be replaced. Technician A says the primary shoe faces the front of the vehicle. Technician B says apply high quality bearing grease to the backing plate pads to prevent squeaks and provide smooth movement. Who is correct?
15. Technician A says to use double-flare copper tubing when replacing automotive brake lines. Technician B says to use single-flare steel tubing when replacing automotive brake lines. Who is correct?
16. A vehicle's left front brake is dragging. Which of the following is LEAST likely to cause this condition?
17. A vibration is felt in the steering wheel only while braking. Technician A says excessive lateral runout on the front rotors will result in this condition. Technician B says to use a dial indicator to check lateral runout. Who is correct?
19. Technician A says to use the original brass washer when installing a new flexible brake hose. Technician B says to use a compression fitting to repair a small leak in a stainless steel brake line. Who is correct?
21. The front brakes of a vehicle with a front disc rear drum brake system skid when the brakes are first applied. Which of these is causing this skid condition?
22. A vehicle's brake lights are completely inoperative. Technician A says the brake light switch may be stuck closed. Technician B says the circuit may have shorted and blown a fuse. Who is correct?
23. Technician A says to release the electronic parking brake before removing the rear brake pads. Technician B says to reset the electronic parking brake after replacing the brake pads. Who is correct?
24. Two technicians are discussing electric parking brake systems. Technician A says these systems require many manual adjustments. Technician B says a special procedure must be followed before replacing the brake pads. Who is correct?
25. A technician is measuring the inside diameter of a brake drum with a brake drum micrometer. The technician should use which of the following measurements?
26. The pads of the rear brake backing plate have formed small ridges where the brake shoes rest. Technician A says slight ridges in the backing plate pads can be filed to restore a smooth finish. Technician B says to use a high-temperature dry film brake lubricant for metal to metal brake lubrication. Who is correct?
27. A vehicle has a low brake pedal. Technician A says an improperly adjusted brake pedal could be the cause. Technician B says overheated brake fluid would result in this condition. Who is correct?
28. After flushing the brakes with new brake fluid the vehicle still has a low brake pedal. Technician A says this could be caused by the ABS hydraulic control module. Technician B says a faulty master cylinder could be the cause. Who is correct?
29. Technician A says to adjust a height sensing proportioning valve while the vehicle is raised. Technician B says to adjust a height sensing proportioning valve while the vehicle is at vehicle curb ride height. Who is correct?
30. A scan indicates a fault with the LF wheel speed sensor. A visual inspection indicates both the LF wheel speed sensor’s tip and tone ring are damaged. Technician A says to check the wheel bearing for looseness. Technician B says the wheel speed sensor and the tone ring must be replaced. Who is correct?
31. A hydro-boost brake system has reduced braking performance. Technician A says to check the power steering system. Technician B says to check the vacuum check valve. Who is correct?
32. A vehicle has a hard brake pedal with reduced stopping power. Which of the following is LEAST likely to cause this condition?
33. A vehicle pulls to the left only when the brakes are applied. This condition is MOST likely caused by:
34. Technician A says accumulators are found only on non-integral ABS systems. Technician B says some integral ABS units contain high pressure accumulators that must be discharged before repair. Who is correct?
35. Technician A says ABS control units that use passive wheel speed sensors are programmed to ignore speed sensor input variations below a certain threshold. Technician B says active wheel speed sensors produce a square waveform. Who is correct?
36. During a brake inspection one rotor is found to be much hotter than the other. Technician A says this could be caused by a sticking brake caliper. Technician B says this could be caused by the brake caliper piston seal. Who is correct?
37. Two technicians are discussing master cylinder residual check valves. Technician A says the residual check valve is required on four wheel disc brake systems. Technician B says the valve maintains slight hydraulic pressure to keep seals seated. Who is correct?
38. It is noticed during a brake inspection of a front disc rear drum brake system that one shoe is worn more than the other. Technician A says that this is caused by a faulty residual check valve. Technician B says this is caused by a faulty proportioning valve. Who is correct?
39. A vehicle with ABS brakes has an audible clicking noise when it is first started. The noise goes away after a few seconds. Technician A says this is one of the hydraulic valves in the hydraulic valve assembly sticking. Technician B says this is a normal condition. Who is correct?
40. Light braking causes the rear wheels of a light truck with front disc rear drum brakes to lock up and skid. This lock up condition is caused by a faulty:
41. A vehicle with a vacuum brake booster has a hard pedal with little stopping power. Technician A says a kink in the check valve's hose will result in this condition. Technician B says a vacuum booster needs at least 12 inHg of vacuum to operate properly. Who is correct?
42. A vehicle has a low spongy brake pedal. Which of these is LEAST likely to result in this condition?
43. Technician A says passive permanent magnet ABS wheel speed sensors produce an A/C voltage signal. Technician B says input from wheel speed sensors are used for anti-lock brake, electronic traction control, and electronic stability control systems. Who is correct?
44. The brakes of a four wheel disc brake system are self applying and locking up after only a few miles of travel. Which of the following is MOST likely causing this condition?
45. The inner brake pad of a front disc brake is worn more than the outer brake pad. Technician A says to check for sticking caliper slide pins. Technician B says this could be caused by a sticking caliper piston. Who is correct?
46. A front wheel drive vehicle with four wheel disc brakes is pulling to the left. Technician A says a kink in the LF brake line will result in this condition. Technician B says to use a compression fitting to repair a section of brake line. Who is correct?
47. The brake pad wear indicator light is illuminated on the instrument panel. Technician A says a brake pad sensor has contacted the rotor and may need replacement. Technician B says the brake pads should be inspected for wear. Who is correct?
48. A vehicle's right front wheel has a growl that increases with vehicle speed. The MOST likely cause is:
49. The ABS warning light is illuminated on a vehicle's with four passive wheel speed sensors. All of the following are true about passive permanent magnet wheel speed sensors EXCEPT:
50. The front brake pads on a vehicle with a quick take up master cylinder need replacement. They were replaced just recently. Technician A says this is a low drag brake system. Technician B says this could be caused by a sticking quick take up valve. Who is correct?
51. During a test drive an excessive vibration is felt in the steering wheel only while braking. The front brake rotors have just been replaced for this same problem. Which of the following is MOST likely causing this vibration?
52. A vehicle has a hard brake pedal at all times. Which of the following is MOST likely causing this condition?
53. A vehicle nosedives while braking. Which of the following is likely to cause this condition?
54. A vehicle has a growling sound that changes in pitch as the vehicle is lightly swerved from left to right. The noise is loudest during left hand turns. Which of the following is MOST likely causing this condition?
56. Technician A says an outside micrometer is the preferred tool for measuring rotor lateral runout. Technician B says a dial indicator is the preferred tool used for measuring rotor thickness. Who is correct?
57. Which of the following input sensors are used as inputs for (TCS) traction control systems?
58. A technician is lubricating rubber brake components while performing a brake job. Technician A says to use a high temperature silicon-based lubricant. Technician B says to use a good petroleum-based lubricant. Who is correct?
59. A technician is testing a vehicle with a vacuum assist brake booster. After pumping the brake pedal several times and starting the engine, the pedal drops toward the floor about ¼ of an inch. Which of the following statements is correct?
60. The red brake warning light on the instrument panel illuminates only when the brakes are applied. Which of the following is causing this intermittent warning light?
Please select an answer