Duo-Servo drum brakes vs Leading/Trailing

What type of drum brake system uses 1 longer shoe and 1 shorter shoe?

• Leading/Trailing Drum Brakes

• Servo Drum Brakes

• Duo Servo Drum Brakes

• Drum Brakes

The longer shoe is called the _____________ shoe.

• Primary

• Secondary

• Leading

• Trailing

What catches the brake shoe and pushes it down?

• Brake shoe

• Mechanical energy

• The brake drum

• Mother nature

A vehicle with Duo Servo drum brakes comes into the shop. Technician A states that when applying the brakes on a Duo Servo drum brake system, the primary shoe drives the secondary shoe into the drum and into the anchoring pin. Technician B states that Duo Servo drum brakes use an anchoring pin on the bottom of the backing plate. Who is correct?

• Technician A

• Technician B

• Both Technicians

• Neither Technician

Which brake shoe does the majority of the braking when driving forward on a Duo Servo drum brake system?

• Primary Shoe

• Secondary Shoe

• Both shoes are equal

What shoe does the majority of the braking on a leading/trailing drum brake setup when driving forward?

• Leading Shoe

• Trailing Shoe

• Both shoes

What type of drum brake system uses one shoe that is longer than the other shoe?

• Duo Servo drum brakes

• Disc Brakes

• Air Brakes

• Leading/Trailing drum brakes

What part in the drum brake system receives pushes the brake shoe towards the drum?

• Brake Shoe

• Wheel Cylinder

• Hold down spring

• return spring

What is the point of the anchoring pin in a drum brake system?

Which type of drum brake system do you think would be more efficient between Duo Servo and Leading/Trailing? Make sure you type and explanation.