Brakes (A5)Câu 51 / 120
The main function of an anti-lock brake system (ABS) is to:
a.Increase brake fluid pressure permanently
b.Replace the parking brake
c.Prevent wheel lockup and maintain steering control during hard braking
d.Eliminate the need for brake pads
Giải thích
ABS pulses hydraulic pressure to keep wheels from locking so the driver retains steering control and shortens stopping distance on most surfaces. Wheel-speed sensors feed the control module, which modulates the hydraulic unit. A fault typically turns on the ABS warning lamp and disables the function.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- 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 primary purpose of a brake power booster 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:
- During a disc brake job, a technician should measure rotor thickness and compare it to the:
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