Electric Drum Brakes Quiz

What is the first step in the input mechanism of electric drum brakes?

• Magnet de-energizes

• Voltage signal to magnet

• Retractor springs pull the shoes

• Primary shoe contacts drum

What occurs during the brake release phase in electric drum brakes?

• Voltage signal to magnet

• Magnet slides on armature surface

• Magnet de-energizes

• Primary shoe contacts drum

What component in an electric drum brake is responsible for returning the brake shoes to their original position?

• Actuating Lever

• Retractor Spring

• Adjuster Spring

• Magnet

Which part of the electric drum brake is directly involved in adjusting the brake shoes?

• Magnet

• Primary Shoe

• Adjuster

• Shoe Hold Down Spring

What is the function of the controller in an electric drum brake system?

• It provides power to the magnets to actuate the trailer brakes.

• It connects the controller directly to the battery.

• It switches battery power to brakes if breakaway occurs.

• It is used to connect and disconnect the trailer and tow vehicle.

What does the breakaway battery do in the event of a trailer breakaway?

• Provides power to actuate trailer brakes.

• Connects the controller directly to the battery.

• Switches battery power to brakes if breakaway occurs.

• Connects and disconnects the trailer and tow vehicle.

What is the purpose of the breakaway switch in an electric drum brake system?

• Connects the controller directly to the battery.

• Switches battery power to brakes if breakaway occurs.

• Connects and disconnects the trailer and tow vehicle.

What happens when the electrical current is fed into the brake system by the brake controller?

• It flows to the brake pads.

• It flows to the electromagnets in the brake assembly.

• It flows to the hydraulic system.

• It flows to the brake fluid reservoir.

What is the role of the high-capacity electromagnets in the brake assembly?

• They heat up the brake fluid.

• They are attracted to the rotating armature surface of the brake drum.

• They release the brake shoes.

• They control the brake lights.

What happens when the current flow to the electromagnet is increased in an electric trailer brake system?

• The magnet grips the armature surface more firmly, increasing pressure against the shoes.

• The primary shoe moves out of contact with the brake drum.

• The retractor spring is released.

• The adjuster assembly is disengaged.