Elevator Mechanic Practice Exam

How many points of contact must be maintained on a ladder? How far above landing must it extend? What is the proper ratio? What steps don't we use?

1. 3 points of contact, 2 feet above, 3:1, top 3 steps

2. 2 points of contact, 3 feet above, 4:1, top 2 steps

3. 3 points of contact, 3 feet above, 4:1, top 2 steps

4. 4 points of contact, 2 feet above, 5:1, top 4 steps

The correct answer is: 3 points of contact, 3 feet above, 4:1, top 2 steps

The correct answer emphasizes three key safety principles when using a ladder: maintaining three points of contact, extending three feet above the landing, and following a four-to-one ratio. Maintaining three points of contact ensures stability and safety while working on a ladder. This practice helps prevent slips and falls by providing a secure grip with both hands and at least one foot, or alternatively, two hands and one foot. Extending the ladder three feet above the landing is crucial for safe access and egress. This extension allows the user to have a secure handhold as they step onto or off the surface, reducing the risk of losing balance midway. The proper ratio of four-to-one means for every four feet of height that the ladder reaches, the base should be one foot away from the wall or structure it’s leaning against. This ratio ensures the ladder remains stable and reduces the risk of tipping over. The mention of the top two steps being unsafe reflects a correct understanding of ladder safety guidelines. The top two steps are generally not to be used because they do not provide a stable platform, increasing the risk of falls. Overall, these guidelines are crucial for ensuring safety when using a ladder in any work environment.