Excessive use of the service brakes results in overheating, which can lead to:

Expansion of the brake drums.. Section 5.4: Heat causes drums to expand. The shoes then have to travel farther to touch the drum, causing

Excessive use of the service brakes results in overheating, which can lead to:

ANSWER BREAKDOWN
  • A. Correct. Heat causes drums to expand. The shoes then have to travel farther to touch the drum, causing brake fade.
  • B. Incorrect. "Increased braking power." is not correct. Heat causes drums to expand. The shoes then have to travel farther to touch the drum, causing brake fade.
  • C. Incorrect. "Better contact between shoes and drums." is not correct. Heat causes drums to expand. The shoes then have to travel farther to touch the drum, causing brake fade.
  • D. Incorrect. "Instant stopping." is not correct. Heat causes drums to expand. The shoes then have to travel farther to touch the drum, causing brake fade.