How far should areas be avoided where a container could drop?

The correct distance to avoid areas where a container could drop is one-half the height of the container. This guideline is based on safety protocols designed to minimize the risk of accidents or injuries caused by falling containers. When handling compressed gases, especially in high or unstable environments, understanding the potential drop zone is crucial.

By maintaining a safe distance that is at least half the container's height, personnel can ensure they are outside the range where a falling container could cause harm. This distance accounts for the potential trajectory and impacts associated with falling objects, which could ricochet or roll upon hitting the ground, leading to further hazards.

In contrast, the other options suggest varying distances that may not adequately consider the dynamics of a falling container. Distances lesser than one-half the height may place individuals within a potentially dangerous zone. Therefore, adhering to the guideline of avoiding areas at least one-half the height of the container strikingly enhances safety during operations involving compressed gases.