WorksheetsBrakes 5
Total questions: 10
Worksheet time: 5mins
A solid brake disc has two frictional surfaces, if excessive braking applied they suffer
Overheating
Fade
Warping
All of the answers
Ventilated discs are better than solid discs because:
They are cheaper to produce
They are lighter than solid discs as they are aluminium
They have an air space to cool brakes
They can turn in both directions
co-efficient of friction is described as:
Friction reduces as temperature increases
Friction increases as temperature increases
Friction must remain constant
Temperature must remain constant
How many pistons are there in a sliding caliper?
Four
Two each side
One
More pistons on high performance calipers
Why are drilled brake discs used on cars?
They decrease the friction coefficient between pad & disc
They allow more air into solid disc
They increase the friction coefficient between pad & disc
They remove water from brakes
As kinetic energy is converted into heat by the surfaces of the brakes causing friction. this can cause brake fluid to boil this is known as:
Efficiency
Imbalance
Fade
Lag
What is the material used in brake pads?
Very strong rubber blocks
Asbestos Compound
Compound inc. Fibres of Wood, Steel, Ceramic, Carbon and Glass
Compound Rayon, Nylon and Plastic
When the leading shoe is dragged onto the drum this is known as:
Trailing shoe
Slip shoe
Self-servo action
Brake servo action
Handbrake linkage operates:
one wheel at a time
equally on both wheels on same axle
70/30 split between front and rear wheels
50/50 between front wheels
Leading and trailing shoe arrangement is important on drum brakes, why is this?
It allows self-servo action in both directions.
The shoes know their place.
Otherwise handbrake could not work.
Because servo does not work on rear brakes.
