The correct answer is indeed “A. Brake shoe.” Brake linings are components of a braking system in vehicles, and they are mounted on brake shoes. Let’s explain in detail why this answer is correct and why the other options are not:

A. Brake Shoe (Correct Answer):

Brake linings are typically mounted on brake shoes. Brake shoes are curved metal components that are part of the drum brake system, which is commonly used in the rear wheels of many vehicles. The brake lining is attached to the inner surface of the brake shoe.

When the brake pedal is pressed, hydraulic pressure is applied to the wheel cylinder, which forces the brake shoes to expand against the inner surface of the brake drum. This action causes the brake lining to make contact with the brake drum, creating friction and slowing down the vehicle.

Now, let’s discuss why the other options are not correct:

B. Brake Drum (Incorrect):

The brake drum is another component of the drum brake system, but it is not where the brake lining is mounted. Instead, the brake drum is a cylindrical, rotating component that is connected to the vehicle’s wheel.

When the brake shoes are pressed against the inner surface of the brake drum, it is the brake drum’s surface that they make contact with, not where the brake lining is mounted. The brake drum provides the friction surface against which the brake lining presses to create the stopping force.

C. Master Cylinder (Incorrect):

The master cylinder is a critical component of the braking system, but it is not where the brake lining is mounted. The master cylinder is responsible for generating hydraulic pressure when the brake pedal is pressed.

This hydraulic pressure is transmitted to the wheel cylinders (or calipers in the case of disc brakes) to actuate the brakes. The master cylinder is not directly involved in mounting the brake lining.

D. Wheel Cylinder (Incorrect):

The wheel cylinder is another part of the drum brake system, but it is not where the brake lining is mounted either. The wheel cylinder is responsible for pushing the brake shoes against the inner surface of the brake drum when hydraulic pressure is applied.

While the wheel cylinder plays a crucial role in the operation of drum brakes, it is not the location where the brake lining is mounted. Instead, the brake lining is attached to the brake shoes, and it is the brake shoes that make contact with the brake drum.

E. Any of the Above (Incorrect):

Option E, “Any of the above,” is not correct because, as explained above, the brake lining is specifically mounted on the brake shoe in the context of a drum brake system. While other components of the braking system (such as the brake drum, master cylinder, and wheel cylinder) are essential for the overall functioning of the brakes, they are not where the brake lining is physically attached.

In summary, the brake lining is indeed mounted on the brake shoe, which is a component of the drum brake system. The brake shoe, when actuated by hydraulic pressure, presses the brake lining against the inner surface of the brake drum to create friction and facilitate braking.

Therefore, option A, “Brake shoe,” is the correct answer when considering the location of the brake lining in a drum brake system.