Which knot is used to tie a line around a post with a quick release?

• A. Slip knot
• B. Square knot
• C. Overhand knot
• D. Reef knot

Answer: (A)

When you need a line that goes around a post and can be released quickly, you want a knot that tightens under load but can be undone with a pull on the free end. A slip knot does exactly that: it forms a loop that cinches around the post as tension increases, yet the knot releases quickly when you pull the working end. This makes it ideal for a quick-release around a post. The other knots don’t fit this need: they either don’t release readily under load (the simple stopper nature of an overhand), or are meant for joining two ends (the reef/square knot) and don’t provide a reliable quick release around a post.