WorksheetsDrum Brake Systems exercise
Total questions: 1
Worksheet time: 9mins
What is the role of the fluid in drum brake systems?
A) It lubricates the brake drum.
B) It pushes two pistons within the wheel cylinder body outward.
C) It cleans the brake shoes.
D) It cools down the brake system.
What is the result of the friction generated in drum brake systems?
A) It increases the rotation of the wheel.
B) It generates electrical energy.
C) It slows down the rotation of the wheel.
D) It transfers heat to the brake fluid.
Where does the brake fluid go in a drum brake system instead of entering a caliper?
A) Into the brake pedal.
B) Into the brake drum.
C) Into the master cylinder.
D) Into the wheel cylinder, located inside the cast-iron brake drum itself.
What is the purpose of the spring sitting between the two pistons and another between the shoes in drum brake systems?
To ensure the brake shoes wear down evenly
To ensure everything returns to its original position once the brake pedal is released
To adjust the distance the brake shoes require to meet the drum surface
To lubricate the automatic adjuster
What can cause the automatic adjuster in drum brakes to wear and cause play or slipping in the lever mechanism?
Using the wrong type of lubricant
The teeth on the automatic adjuster wearing down
The brake shoes remaining too close to the drum
The brake shoes wearing down evenly
Why is it not recommended to use chassis or wheel bearing greases inside a brake drum?
They can cause the brake shoes to wear down unevenly
They are not designed to withstand the temperatures inside a brake drum
They can cause the automatic adjuster to seize
They prevent the brake shoes from returning to their original position
What should be done if there are signs that the platings or coatings on the automatic adjusters have been damaged?
Service and lubricate the adjusters
Install a new hardware set
Apply more grease to restore the corrosion-resistant surface
Adjust the distance the brake shoes require to meet the drum surface
What happens as the brake shoes wear down in a drum brake system?
The piston requires less fluid to travel the distance
The brake shoes move closer to the drum
More space forms between the shoe and the drum
The automatic adjuster retracts
What is the recommended action if a customer's car has an emergency brake adjuster that is not used for long periods of time?
Remind them to apply the emergency brake at least once a week.
Advise them to disconnect the emergency brake adjuster.
Suggest applying the emergency brake once a month.
Inform them that no action is necessary.
Which of the following tools is necessary when replacing shoes or wheel cylinders on drum brake systems?
Needle-nose pliers
Brake spring pliers
Standard wrench
Hammer
Brake spoons are used for what purpose when servicing drum brakes?
To remove the brake drum
To make it easier to get into the adjuster window when setting the gap between the brake shoes and drum contact area
To compress the brake hold-down springs
To cut the brake lines
When should brake shoes be replaced on drum brake systems?
When the friction material is worn down to within 1/32" (0.8 mm) of the rivets
After every 10,000 miles regardless of wear
When the brake shoes make noise
When the friction material is completely worn off
What is the consequence of using a worn-out brake shoe for too long?
It improves the braking efficiency
It has no significant effect on the brake drum
Deep scores can get worn into brake drums
It increases the fuel efficiency of the vehicle
Why is the drum brake system still in use despite the preference for disc brakes in most cars?
Because drum brakes are more effective in stopping vehicles
Because they are cheaper to manufacture and maintain
Because they are suitable for slower, less expensive vehicles and some hybrid and electric vehicle manufacturers also use them
Because drum brakes are easier to install
