Drum Brakes
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Drum breaks work by typically halting the movement of a cylindrical moving object by pressing pads against it. How well do you know of this system? Does your car use this system? Find it all out in the quiz below.
- 1._____________________ do just what their name suggests; they hold the brake shoes against the backing plate.
- A.
Specialty springs
- B.
Return springs
- C.
Hold-down springs
- D.
None of the above
- 2.__________________ are used to return links and levers on the parking brake system or the self-adjuster mechanism.
- A.
Specialty springs
- B.
Return springs
- C.
Hold-down springs
- D.
None of the above
- 3.Which type of brake lining is typically used on light-duty vehicles?
- A.
Bonded
- B.
Rivets
- C.
Both A and B
- D.
None of the above
- 4.Which of the following can be found on a typical drum brake shoe?
- A.
Holes
- B.
Slots
- C.
Tabs for springs
- D.
All of the above
- 5.The ___________________ gets its name from using the servo action in both the forward and the reverse direction.
- A.
Twin leading shoe drum brake system
- B.
Leading/trailing shoe drum brake system
- C.
Duo-servo drum brake system
- D.
None of the above
- 6.True or False. The composition of the lining material affects brake operation. Materials that provide good braking with low pedal pressures tend to lose efficiency when they get hot.
- A.
True
- B.
False
- 7.___________________ are installed so the direction they are applied is the same as the forward rotation of the drum.
- A.
Trailing shoes
- B.
Leading shoes
- C.
Stationary shoes
- D.
None of the above
- 8.
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 9.
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 10.Tech A says that if a hubless-style drum has screws or speed nuts holding the drum to the hub, you should remove them following the specified procedure. You cannot discard the speed nuts or the screws. Tech B says that if a hubless-style drum has screws or speed nuts holding the drum to the hub, you should remove them following the specified procedure. The speed nuts can be discarded and are not needed upon reassembly. The screws will be reused. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 11.Tech A says that the anti-chatter band used for turning brake drums is not necessary, and not installing it on the brake drum will not affect the results. Tech B says that you should always install the anti-chatter band to reduce vibration and get the correct finish on the brake drum. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 12.Tech A says that to reassemble a duo-servo brake, the backing plate pads should be lubricated. Tech B says that to reassemble a duo-servo brake, the star wheel assembly should be lubricated on the floating end. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 13.All of the following components are part of a parking brake system in a drum brake, EXCEPT:
- A.
Primary shoe.
- B.
Secondary shoe.
- C.
Brake strut rod.
- D.
Wheel cylinder.
- 14.Which of the following is a recommended tool for removing brake lines from a wheel cylinder?
- A.
Flare nut wrench
- B.
Line wrench
- C.
Both A and B
- D.
None of the above
- 15.
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 16.Tech A says that you should always start lug nuts on the wheel stud by hand. Tech B says that on some vehicles you are required to install the hubcap before installing the lug nuts. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 17.
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 18.Tech A says that servicing the wheel bearings is a common part of a brake job if the vehicle has serviceable wheel bearings. Tech B says that if the vehicle uses non-serviceable bearings, the bearings should be checked during a brake job and replaced if they are worn out. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 19.Which type of drum is typically used on common passenger vehicles?
- A.
Hub-style drum
- B.
Hubless-style drum
- C.
Both A and B
- D.
None of the above
- 20.Wheel cylinders typically contain which of the following?
- A.
One or two pistons
- B.
Spring and expander set
- C.
Both A and B
- D.
None of the above
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