Brakes (A5)Câu 50 / 120
The primary purpose of a brake power booster is to:
a.Store brake fluid
b.Adjust the parking brake
c.Prevent wheel lockup
d.Reduce the pedal effort required to apply the brakes
Giải thích
The vacuum or hydraulic booster multiplies the driver's pedal force so less effort is needed for firm braking. A failed vacuum booster or leaking check valve produces a hard pedal. It works with, not instead of, the hydraulic system.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A brake pedal that slowly sinks to the floor while held under steady pressure most likely indicates:
- Technician A says a spongy brake pedal is commonly caused by air in the hydraulic system. Technician B says air in the lines increases braking power. Who is correct?
- Technician A says a pulsating brake pedal is usually caused by air in the hydraulic lines. Technician B says it is usually caused by rotor thickness variation or excessive lateral runout. Who is correct?
- The main function of an anti-lock brake system (ABS) is to:
- A wheel-speed sensor signal that is missing on one wheel will most likely cause the ABS to:
- Brake fluid is hygroscopic, which means it:
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