Which statement about using a sledgehammer to create a hole in the ice is true?

• A. It is the preferred method to break ice.
• B. It should be used only if there is no other way.
• C. It is not recommended because it will weaken the surrounding ice.
• D. It is illegal.

Answer: (C)

Creating a hole in ice by hammering concentrates force in a small area, which shatters the ice and creates cracks that radiate outward. Those fractures weaken the surrounding ice and can make the edge of the hole or nearby ice unstable, increasing the risk of a sudden failure as people or gear move near the area. Because of that safety risk, using a sledgehammer is not recommended to make an ice hole. Safer, controlled methods such as ice saws or purpose-built ice drills minimize disturbance to the surrounding ice and reduce the chance of hidden cracks propagating. The other statements aren’t as accurate: hammering isn’t the preferred method, it isn’t universally illegal, and it isn’t true that it should be used only if there’s no other way.