Technician A says power brakes are designed with vacuum-assisted units that use engine vacuum. Technician B says power brakes are designed with vacuum-assisted units that use vacuum developed by an external pump. Who is correct?

Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN:9781133612315
Author:Jack Erjavec, Rob Thompson
Publisher:Jack Erjavec, Rob Thompson
Chapter50: Brake Systems
Section: Chapter Questions
Problem 4ASRQ: While discussing quick take-up master cylinders: Technician A says that this design allows for...
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Technician A says power brakes are designed with vacuum-assisted units that use engine vacuum. Technician B says power brakes are designed with vacuum-assisted units that use vacuum developed by an external pump. Who is correct?

a. A only
b. B only
c. both A and B
d. neither A nor B

Synthetic linings are made of _____

a. fiberglass
b. aramid fiber
c. both A and B
d. neither A nor B

All manufacturers recommend a specific sequence to follow when bleeding a vehicle’s brakes.

a. True
b. False


Organic friction material _____ semimetallic materials.

a. is quieter than
b. is more fade resistant than
c. requires higher pedal pressure than
d. wears out faster than

 

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