Which type of knot is commonly used in line work for securing tools?

The bowline knot is commonly used in line work for securing tools because it creates a fixed loop at the end of a rope that does not slip under load. This characteristic makes it ideal for tying off tools or equipment, ensuring that they remain securely attached while still being easy to untie when needed. The bowline is straightforward to tie and can be used with one hand, which is particularly beneficial in line work, where the other hand may be occupied. Its reliability and ease of use in a variety of conditions contribute to its popularity in the field.

In contrast, other knots like the figure-eight knot, while useful for creating a stopper or securing climber's harnesses, do not create a steady loop that remains secure for attaching tools. The square knot is more suited for joining two pieces of rope together rather than securing tools. The clove hitch, while effective for securing a rope to a pole or post, may slip under certain conditions and is not as reliable for hanging tools as the bowline knot.