Oklahoma Locksmith Practice Exam

When leaning a ladder against a wall, how far from the wall should the foot of the ladder be located?

1. 1/2 the working length of the ladder

2. 1/3 the working length of the ladder

3. 1/4 the working length of the ladder

4. 1/5 the working length of the ladder

The correct answer is: 1/4 the working length of the ladder

When positioning a ladder against a wall, it is crucial to ensure stability and safety. The correct distance for the foot of the ladder from the wall is typically considered to be 1/4 of the working length of the ladder. This ratio maximizes the ladder's stability while minimizing the risk of slipping or tipping over. Using this guideline, if you consider a ladder's working length, which is the length you can actually use when leaning against a surface, placing the base of the ladder at a distance equal to 1/4 of this working length creates an optimal angle for climbing. This angle is often about 75 degrees to the ground, which is both manageable for ascent and descent and secure enough to prevent falls. This distance supports the distribution of weight and helps prevent accidents that can occur due to an overly steep or too shallow angle. Understanding and applying this ratio ensures the safety and efficacy of ladder use in various locksmithing and other professional activities where ladder access is required.