What type of knot is commonly used to attach a rope to an object during a rescue?

The bowline knot is a reliable choice for attaching a rope to an object during a rescue because it forms a fixed loop at the end of the rope that does not slip. This characteristic is essential in rescue scenarios, as it provides a secure and stable point for lifting or holding a person or equipment without the risk of the knot coming undone under load. The bowline is easy to tie and untie, even after it has been loaded, which adds to its practicality in emergency situations. Its ability to maintain a solid structure while remaining user-friendly makes it a preferred option among rescuers.

In contrast, other knots such as the square knot are primarily used for tying two ropes together and do not provide the same level of security when attaching to an object. The clove hitch, while useful for securing a rope to a cylindrical object, can slip if not under constant tension. The double fisherman's knot is excellent for joining two ropes but is not ideal for attaching a rope to an object, as it creates a bulkier connection. Therefore, the bowline knot stands out as the most effective choice for securing a rope to an object in rescue operations.