ASE A5 Brakes Practice Test
11. Which of the following brake fluids is silicon-based?
- A. Dot 5.1
- B. Dot 3
- C. Dot 4
- D. Dot 5
12. A vehicle has a low brake pedal that slowly fades to the floorboard, causing the vehicle to creep forward at stoplights. An initial inspection indicates that the master cylinder reservoir is full, and no external leaks exist. Which of the following is causing this condition?
- A. Contaminated brake fluid.
- B. Leaking master cylinder cup seals.
- C. Vacuum brake booster failure.
- D. A faulty metering valve.
13. The front of a passenger vehicle has a growling sound that increases in intensity while making left-hand turns. The MOST likely cause of this sound is:
- A. Excessive rotor lateral run out.
- B. A faulty left-front wheel bearing.
- C. A worn outer CV-Joint.
- D. A faulty right-front wheel bearing.
14. 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?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B
15. The master cylinder reservoir cap gasket is swollen and deformed. The cap fits tight, and there are no external leaks found. Technician A says this could be caused by contaminated brake fluid. Technician B says brake fluid is hygroscopic and readily absorbs moisture from the air. Who is correct?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B