Which statement about extension ladder height limits on job sites is correct?

• A. 72 feet
• B. 60 feet
• C. 74 feet
• D. 100 feet

Answer: (A)

A safety rule sets a maximum height for extension ladders on job sites because taller ladders become increasingly unstable and harder to secure. The limit is chosen so you can maintain the correct angle, keep three points of contact, and have a stable footing while climbing and working. When you need to reach higher than that limit, you must use safer alternatives such as scaffolding or a powered aerial lift. That’s why this option aligns with standard practice: it reflects the established height limit designed to keep work safe and practical. The other higher numbers would require equipment beyond the typical ladder setup, which is not considered safe for standard use.