Arkansas Commercial Driver License (CDL) Practice Test 2025 - Free CDL Practice Questions and Study Guide

Placing a warning device behind a vehicle on a two-lane road is crucial for ensuring safety in the event of a breakdown or emergency. The correct distance to place the warning device is 100 feet. This distance is significant as it gives approaching vehicles ample time to see the warning and react accordingly, thereby reducing the risk of collisions.

It’s important to remember that visibility and reaction time are critical factors when dealing with roadside safety. A distance of 100 feet allows vehicles traveling at typical speeds on two-lane roads to notice the warning device in sufficient time to slow down or change lanes as necessary.

Shorter distances, like 10 feet or 50 feet, would not provide enough reaction time for drivers who may be approaching quickly. On the other hand, a distance of 150 feet may be more than necessary, potentially causing confusion about the location of the hazard, making it harder for drivers to gauge how to navigate the situation. Thus, 100 feet strikes an effective balance, ensuring safety without creating undue confusion for motorists.