California CDL Air Brakes Test

Why is heat the enemy of brake drums on long downgrades?

Heat improves friction Heat causes drums to expand away from the linings (fade) and can crack the drums or burn the linings Heat freezes the air Heat strengthens metal

Correct Answer:

Heat causes drums to expand away from the linings (fade) and can crack the drums or burn the linings

Access more questions from this quiz

Continue to California CDL Air Brakes Test for more practice questions and the full quiz experience.

Access More Questions