If you must use a ladder at a steeper angle due to site conditions, what precaution should you take?

When using a ladder at a steeper angle due to site conditions, the best precaution to take is to tie off the top of the ladder. This action enhances stability and safety by ensuring that the top is secured and cannot slip or slide away from the surface it is leaning against. By tying off the top, you are minimizing the risk of the ladder falling or tipping over, which can lead to serious accidents or injuries.

Securing the top is especially crucial in scenarios where the angle compromises the ladder's ability to stay upright. This is a common setting in construction or maintenance activities where uneven ground or inadequate support might necessitate a less than ideal ladder placement. With the top tied off, even if the ladder is at a steeper angle, it is less likely to shift unexpectedly, providing you with a safer working environment.

In contrast, other measures like tying off or blocking the bottom may not provide the same level of security at a steeper angle, potentially allowing for more movement or increased risk. Hence, tying off the top stands out as the most effective precaution in this situation.