Brakes Flashcards
What is the purpose of brakes
To slow and a stop a vehicle in a safe manner
Whay energy does heat energy get converted from when braking?
Kinetic energy
What are the two types of brakes
Brake shoe and drum - Brake pad and disc
Name 4 factors that can affect braking
Road surface, road conition, vehicle weight, load on wheel, manoevures and tyres
What links the cross shaft to the brake operating levers?
Adjustable rods
If the rods are adjusted so there is a bigger gap on the right than the left. What will happen when the brakes are operated?
Car will drift left
True or false?
All mechanical brake systems are shoe and drum
True
What component houses a majority of the other components
Back plate
What prevents shoes being dragged by moving drum
Shoe anchor
What type of steady post holds the shoe off of the back plate?
Adjustable type (hold off)
What is the main disadvantage of the shoe and drum?
Brake fade
What is brake fade?
When components get too hot and require for effort to brake
What is the handbrake attached to?
Cross shaft
What is the name given to the first shoe after the expander in direction of travel?
Leading shoe
How many expanders are in a twin leading shoe arrangement?
2
What is a shoe made up from?
Web and lining
Hydraulic fluid must have high viscosity. True or false?
False
What is the main disadvantage of brake fluid?
It is Hygroscopic
What are the two ports called in a hydraulic brake cylinder?
Compensating and supply ports
What operates the piston?
Brake pedal
What indicates to you a difference in pressure within the lines?
Pressure differential warning indicator
What cylinders are used on a twin leading arrangement?
Single acting
What are the 2 types of discs?
Solid and vented
What does a pad consist of?
Friction material bonded to metal plate
Where are the pads housed?
Calipers
What is the fluid chamber?
The area behind the piston
What releases the brake pad from the disc?
The seal inbetween the piston and cylinder
True or false? All disc and pad systems are self-adjusting?
True
What are the characteristics of a multi-piston?
Space saver and L system split
How many pistons does a floating caliper have?
1
