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WorksheetsDrum brake Diag
Total questions: 20
Worksheet time: 10mins
What is a labyrinth seal?
O-ring
Rubber seal
Mechanical seal
Square cut seal
What type of flare is this?
Bubble
compression
Double
Threaded
What is being done in the picture?
Pads being adjusted
Drum being measured
Shoes being measured
Drum to shoe clearance being set
What part is being adjusted?
Hold down spring
Adjusting pawl
Star wheel adjuster
Spring tension
What part is this?
Backing plate
Wheel cylinder
Splash shield
Drum
I wasn't Listening at all this week
What is this part?
Shoes
Wheel cylinder
Caliper
Backing plate
If brake fluid is seen dripping from inside the drum where would the fluid be from?
Water
Axel seal
Caliper
Wheel cylinder
What type of wrench is used to tighten or loosen brake lines?
Combination wrench
Flare nut wrench
open ended wrench
Adjustable wrench
Why do we wet the drum before removing?
Loosen it
Dust/Asbestos
Clean the outside
Remove brake fluid
What areas do we lubricate?
Star wheel Adjuster
Lining table
Ledges
wheel cylinder
Anchor
What type of drum is this?
Leading trailing
Dual servo
Dual trailing
Disc
A vehicle with drum brakes on the rear wheels will usually have ____________ brakes on the front wheels.
Expanding shoe
internal pad
Disc
Drum
Which part of the drum brake shoe contacts the ledges on the backing plate?
Anchor eye
Lining table
Nib
Web
Which lining does most of the braking on a dual-servo brake?
Depends on the speed of the vehicle
Front (forward facing)
Both contribute equally
Rear (rearward facing)
Which lining does most of the braking on a leading/trailing brake?
Depends on the speed of the vehicle
Trailing (rearward facing)
Leading (forward facing)
Both contribute equally
Mechanical fade occurs when the friction material overheats.
True
False
Trailing shoes generally wear at a faster rate than leading shoes.
True
False
The dual-servo brake is more powerful than any non-servo design.
True
False
What is Part "A"
Ledges
Anchor
Inspection hole
Labyrinth seal
What is the Parking brake lever?
A
B
C
D
