What is the purpose of brake assist (BA) found on some vacuum boosters?
What will be an ideal response?
A brake assist (BA) unit is added to the vacuum booster. This unit detects the brake pedal application speed; in other words, how fast the driver is pushing on the pedal. During a panic stop, the driver naturally tries to move the pedal as fast as possible so the brakes will react quickly. When this condition is detected, the BA will more quickly activate the brake booster or signal the electronic brake system (EBS) controller.
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Two technicians are discussing valve body installation. Technician A says that you should tighten the valve body bolts in a spiral order starting from the outer most bolt. Technician B says that a 3/8 inch drive air ratchet tightens the bolt to just the right amount. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Use the accompanying figure to compute angle C to the nearest minute. Angle A = 41o and angle B = 56o.
A. 30o18' B. 33o19' C. 36o52' D. 39o32'
The tool shown in the illustration is used to:
A. extend the rear caliper piston. B. retract the front caliper piston. C. retract the rear caliper piston. D. extend the front caliper piston.
All of the following statements are true of a live axle EXCEPT:
A. It allows a rig to handle more freight than a dead axle does. B. It supports a rig's weight. C. It is hollow. D. It allows the gears and axles to transmit power to the wheels.