Most larger brake drums have _______ along the outside to aid in cooling the drum.

A) fins
B) return springs
C) holddown springs
D) anchor pins

Brake Drums

Components of a drum brake system in vehicles, consisting of a rotating drum that is forced against brake shoes to create friction and slow the vehicle.

Cooling

The process of removing excess heat from a system or component to prevent overheating and maintain optimal operation.

Fins

Thin, extended surfaces used to increase the area of an object to enhance heat dissipation, common in radiators and heatsinks.