题目内容

The brake systems are divided into ______ types of service brake combinations.

A. two
B. three
C. four
D. five

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Some brake systems have disc brakes at all four wheels, some have______ at the front and drum brakes at the rear, others have drum brakes at all four wheels.

A. disc brakes
B. drum brakes
C. calipers
D. discs

Drum brakes use an internal expanding brake shoe with the lining attached, working within the confines of a rotating brake surface called a______ .

A. master cylinder
B. wheel cylinder
C. brake drum
D. backing plate

The______ diameter is expanded to contact the brake surface by a hydraulic cylinder that is referred to as a wheel cylinder.

A. wheel cylinder
B. brake drum
C. brake shoe
D. master cylinder

Fluid pressure from the______ supplies fluid to wheel cylinders causing them to expand.

A. backing plate
B. master cylinder
C. brake drum
D. brake shoe