During a test of the parking brakes, the apparatus should come to a complete stop within blank feet.

• A. 10 feet
• B. 30 feet
• C. 40 feet
• D. 20 feet

Answer: (D)

When testing parking brakes, you’re checking that the brake system can quickly arrest a moving apparatus and hold it firmly. The standard goal is to bring the vehicle to a complete stop within about twenty feet after the parking brake is applied during the test. This distance reflects a realistic, safe stopping capability for a large fire apparatus under controlled conditions, showing the brakes are properly adjusted and effective. A distance much shorter than twenty feet would be unlikely for a heavy vehicle and could mask issues, while a distance longer than twenty feet would indicate the parking brake isn’t providing adequate stopping power, which would fail the test.