Exercise 1. Describe drum; pad; safety; seal; using the suggested words and expressionsas in example:
drum hollow; solid; cylinder; barrel; act; an exterior entity; drum brake; hoisting drum; A drum is a hollow or solid cylinder or barrel that acts on, or is acted upon by, an exterior entity, such as the drum in a drum brake.Also known as hoisting drum. |
pad layer; material; use; a cushion; protection; |
safety methods; techniques; avoiding; accident; disease; |
seal device; system; create; nonleaking; mechanical or process-system elements; gaskets; mechanical; rotating members; pump shafts; liquid; to prevent; gas entry; loss; a gas-liquid processing; |
Exercise 2. Ask questions to the given answers:
1) Question: ___________________________________________?
Answer: Many experts recommend rebuilding or replacing calipers and wheel cylinders when the brakes are relined in high-mileage vehicles.
2) Question: ___________________________________________?
Answer: Calipers apply the brakes in a disc brake system, while wheel cylinders perform the same job in drum brakes.
3) Question: ___________________________________________?
Answer: Rotors and drums have wear limits for safety reasons.
4) Question: ___________________________________________?
Answer: Ceramic-based friction materials have become popular in recent years because of their stable braking characteristics.
5) Question: ___________________________________________?
Answer: If a vehicle was originally equipped with ceramic pads, the replacement pads should also be ceramic.
III. Writing exercises:
Exercise 1. Complete the sentences with the suggested words: sets; wear;friction;
Brake pads and shoes are sold in matched axle ________ (both fronts or both rears) and should be installed in matched sets on the vehicle. Many vehicles are very sensitive to the type of _________ material in the linings so you should recommend a premium grade of replacement linings that are the same basic type (or better) of friction material as the OE linings to maintain the same feel, __________ and stopping power.
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Exercise 2. Fill in the table with words and expressions from the text:
parts | systems | processes | |
Example: Most vehicles still have | disc brakes in the front and drums in the rear | ||
Many vehicles are very sensitive to | |||
Ceramics are also quieter than | |||
Rotors and drums may need to be resurfaced or replaced when |
Exercise 3. Compose a story on one of the topics (up to 100 words):
“Parts in the brake system”
“Disc brake pads and drum brake shoes”
“Ceramic-based friction materials”
“Replacing calipers and wheel cylinders”