What can cause injury when working at heights?

• A. Heat
• B. Sun exposure
• C. Falling objects such as tools, equipment, and scaffolding
• D. Low oxygen

Answer: (C)

When working at height, the biggest immediate danger usually comes from objects that can fall from above. Tools, equipment, or parts of scaffolding can slip, be knocked loose, or be dropped, and anything that falls can strike workers below, causing serious injuries such as fractures or head injuries. This is why securing everything you’re using at height is essential: use tool lanyards, toe boards and barriers to keep items from reaching the area below, and establish a safe exclusion zone where people aren’t walking or working beneath the overhead work.

Heat and sun exposure are health hazards at height, leading to heat stress, dehydration, or sunburn, while low oxygen is a concern in certain high or enclosed spaces. They’re important safety considerations, but they don’t describe the most common immediate injury mechanism from height work like falling objects do.