Which type of brake tends to heat faster and cool slower than disc brakes?

• A. Drum Brakes
• B. Disc Brakes
• C. Anti-lock Brakes
• D. Regenerative Brakes

Answer: (A)

Drum brakes are designed such that their braking components are enclosed, which results in a quicker build-up of heat during braking. The heat generated from braking is not dissipated as effectively as with disc brakes, leading to a higher temperature during prolonged use. Additionally, the structure of drum brakes means the heat is retained longer, causing them to cool more slowly once the braking effort has ceased.

This characteristic can result in brake fade, where the brake's effectiveness is diminished due to overheating. In contrast, disc brakes have a design that allows for better airflow and heat dissipation, making them more efficient in managing temperature during braking sessions. The other types of brakes listed, such as anti-lock and regenerative brakes, serve different purposes and functionalities and do not directly compare on the basis of heat dissipation with drum brakes.