Drum Brakes
Disc Brakes
Brake Facts
Simple Questions
100
Drum brakes apply stopping pressure by squeezing in? Or by pushing out?
Pushing out.
100
Disc brakes apply braking pressure by pushing out or squeezing in?
Squeezing in.
100
What has replaced braking cables as a more reliable solution?
Hydraulic brake lines
100
The job of the brakes is to...
Slow or stop the vehicle
200
Give one reason why drum brakes are inferior to disc brakes.
They get hot, the apply stopping pressure by pushing out instead of squeezing in, they have many more parts and are more difficult to service, etc.
200
Instead of a drum disc brakes have a ______
Rotor
200
Identify this part...
Brake shoes
200
How many brake rotors are on a car with disc brakes?
4 rotors
300
Some smaller vehicles today still utilize drum brakes where? In the front or rear?
In the rear where approx. 30% of braking power is needed.
300
Instead of curved brake shoes disc brakes have ___________
Brake pads
300
Why do brake rotors often have holes and fins?
To help cool the rotor down
300
What part does the driver apply pressure to in order to stop the vehicle?
Brake pedal
400
What part in the drum assembly is responsible for pushing the brake shoes into the drum?
Cam lobe or S cam
400
Disc brakes are more or less effective than drum brakes?
More effective.
400
What part is responsible for compressing brake fluid in the brake lines to apply the brakes?
Master cylinder
400
What type of fluid is used for modern brake systems?
Hydraulic fluid or brake fluid
500
What part of the Drum Assembly is responsible for relieving brake pressure after the brakes have been applied?
Return springs
500
In newer vehicles with drum brakes in the rear, they must have disc brakes in the front because front brakes are responsible for approx ____% of stopping power.
70%
500
What was the earliest type of braking system called?
Wooden external friction jam brake
500
When brakes squeel you should?
Inspect your brakes