WCS 1109-4 - Knowledge Assessment

What does "ABS" stand for?

How many solenoid valve sets is/are in a hydraulic unit (HU)?

• 4

• 8

• 12

• 16

At what speed the ABS will start functioning?

• 0km/h

• 30km/h

• 100km/h

• 180km/h

What is/are the setting of electrically operated solenoid valves used in the system operation?

• Relief

• Hold

• Release

• Reapply

• Increase

Which of the following below about four-channel ABS system is correct?

• Have separate wheel speed sensor for front and use a common speed sensor for both rear

• Vehicle stability system must has four wheel speed sensors to function individual wheel brakes to help achieve vehicle stability

• Both rear wheels are controlled simultaneously

• Front wheels have no speed sensor

Which of the following below is/are the types of ABS configuration?

• Single-channel

• Dual-channel

• Three-channel

• Four-channel

• Fifth-channel

Which of the following statement below is/are correct?

• Integral systems combine the brake master cylinder and ABS hydraulic modulator, electric pump and accumulator into one assembly

• Integral ABS system sometimes referred to as "add-on' systems

• Integral ABS systems has conventional brake master cylinder and vacuum power booster

• Integral ABS system does not has a vacuum power booster for power assist

What does "WSS" stand for?

What does "EBCM" stand for?

What does "EBM" stand for?