Drum Brake Systems exercise

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