ASE A5 Brakes Practice Test
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 results in this condition. Technician B says a vacuum booster needs at least 12" Hg of vacuum to operate correctly. Who is correct?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B
42. A vehicle has a low spongy brake pedal. Which of these is LEAST likely to result in this condition?
- A. Loose wheel bearings.
- B. Contaminated brake fluid.
- C. Worn brake pads.
- D. Air in the hydraulic system.
43. Technician A says passive permanent magnet ABS wheel speed sensors produce an AC voltage signal. Technician B says anti-lock brake, electronic traction control, and electronic stability control systems use input from the wheel speed sensors. Who is correct?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B
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 the MOST likely cause of this condition?
- A. A blocked master cylinder replenishing port.
- B. A blocked master cylinder vent port.
- C. Worn master cylinder cup seals.
- D. Low intake manifold vacuum.
45. A vehicle pulls hard to the right while braking. Which of the following is causing this condition?
- A. A seized left front brake caliper piston.
- B. A restricted right front brake line.
- C. Sticking right front caliper slide pins.
- D. Worn brake pads.
