CDX - Chapter 47: Drum Brake Systems/ 67 Q&A/ Already Graded A+. Terms like:
Tech A states that is not required for the technician to take the customer on the test drive when diagnosing drum brake problems. Tech B states that during the test drive, one should find a safe place to operate the br...
CDX - Chapter 47: Drum Brake Systems/ 67
Q&A/ Already Graded A+
Tech A states that is not required for the technician to take the customer on the test drive when
diagnosing drum brake problems. Tech B states that during the test drive, one should find a safe
place to operate the brakes at a variety of speeds with a variety of brake pedal pressures. Who
is correct? - Answer: Tech B
_____ is used to adjust brake shoes when the drum is installed. - Answer: Brake spoon
When removing a hubless brake drum, it may be necessary to use a(n) _____ hammer to
hammer on the drum between the lug studs. - Answer: Ball peen
If you are reusing the wheel cylinder, make sure the bleeder screw can be opened. - Answer:
True
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, Tech A says that most brake drums are designed to be machined if minor surface issues are
present. Tech B says that brake drums can be reused if they are machined over specifications, as
long as the surface is smooth. Who is correct? - Answer: Tech A
_____ are installed so the direction they are applied is the same as the forward rotation of the
drum. - Answer: Leading shoes
The backing plate is made from stamped _____ and is bolted to the steering or suspension
components. - Answer: Steel
The leading/trailing shoe drum brake system is very common on the _____ wheels of _____ -
wheel drive vehicles due to their equal braking forces in both the forward and reverse direction.
- Answer: Rear; front
Technician A says that when drum brakes are applied, brake shoes are moved outward against a
rotating brake drum. Technician B says that drum brakes are used on the rear of many vehicles
today. Who is correct? - Answer: Both A and B
The wheel cylinder is attached to the _____. - Answer: Backing plate
Wheel cylinder housings are usually made of _____ or aluminum alloy, and they operate under
extreme pressures and temperatures. - Answer: Cast iron
Dual-acting wheel cylinders use a common cylinder with a _____ in each end. - Answer: Piston;
lip seal
Bonded brake linings are less common on light-duty vehicles because they are more expensive
to build. - Answer: False
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