Which is the correct target speed for the 25-second acceleration test?

• A. 30 mph
• B. 40 mph
• C. 35 mph
• D. 25 mph

Answer: (C)

The main idea here is what speed the test uses as the goal to reach within a 25-second window. The 25-second acceleration test is designed to check how quickly and smoothly the apparatus can climb to a practical highway speed under controlled conditions. Reaching 35 mph within that 25-second period shows proper throttle response, engine performance, and vehicle stability during acceleration.

A target of 30 mph would not push the apparatus enough to reveal how well it accelerates, while 40 mph would set a higher bar that might be unsafe or outside the test's standard parameters. 25 mph would be too low to simulate the kind of speeds encountered in emergency response. So 35 mph is the appropriate target.