Drum Brakes

A line wrench or ___________ wrench is a recommended tool for removing brake lines from a wheel cylinder.

• a. Flare nut

• b. Open-end

• c. Combo

• d. Bent

If one rear brake assembly has linings contaminated with grease from a failed axle seal, __________.

• a. The lining on just that brake assembly will have to be replaced

• b. The lining on both wheel brake units will need to be replaced

• c. Nothing needs to be replaced, but the customer should come in for frequent checkups

• d. None of the above

Tech A says that a brake spoon is used to adjust brake shoes when the drum is installed.

Tech B says that a brake hold-down spring tool is used to remove and install hold-down springs. Who is correct?

• a. Tech A

• b. Tech B

• c. Both Techs A and B

• d. Neither Tech A nor B

A technician notices brake fluid dripping from a brake drum before repairs. Which is most likely leaking inside the drum?

• A. axle seal

• B. backing plate

• C. caliper piston

• D. wheel cylinder

The primary (smaller) shoe on a duo-servo drum brake system should be installed:

• A. after the secondary shoe.

• B. before the secondary shoe.

• C. toward the front of the car.

• D. toward the rear of the car.

While performing rear drum brake service, what should be done before installing the brake drum?

• A. adjusting the shoes

• B. bleeding the brakes

• C. installing a C-clamp

• D. installing the lugnuts

A technician finds brake fluid leaking from a wheel cylinder and finds the brake shoes have been saturated with brake fluid. The correct way to repair this is to install a new wheel cylinder and:

• A. replace the shoes.

• B. wash the shoes with soap.

• C. grind the shoes and reuse.

• D. clean the shoes with brake cleaner.

When replacing brake shoes, where does the shoe with the shortest friction material go?

• A. facing toward the front of the vehicle

• B. facing toward the back of the vehicle

• C. facing toward either direction, because the location does not matter

• D. None of the above

When removing a hubless brake drum, it may be necessary to use a(n) _______ hammer to hammer on the drum between the lug studs.

• a. Plastic

• b. Ball peen

• c. Air

• d. Carbon fiber

You can usually tell which style of brake drum you are working on by looking at the ________.

• a. Wheel cylinder piston

• b. Holes for the lug studs

• c. Level of rust found

• d. None of the above