The function of a brake drum or rotor is to act as _________.
All of the answers.
A friction element.
A heat extinguisher.
A heat sink.
Detailed Explanation
A brake system works on the principle of friction, which develops heat in the process of braking. The drum absorbs and dissipates the heat developed.
Take more free practice tests for other ASVAB topics with our ASVAB prep now!