OSHA 10-Hour Construction ReviewFocus Four HazardsMedium
A worker is operating a backhoe on a construction site. To prevent 'struck-by' incidents from the machine's swinging superstructure, what is the minimum safe distance that other workers should maintain from the operating equipment?
- AAt least 5 feet from the nearest track
- BWithin the swing radius, but with constant communication
- COnly when the operator gives a clear signal
- DOutside the swing radius of the equipment
Show answer & explanationAnswer & explanation
Correct answer: D. Outside the swing radius of the equipment
To prevent 'struck-by' injuries, all personnel must stay clear of the swing radius of heavy equipment like backhoes. This ensures they are not hit by the rotating parts.
Why the other options are wrong
- A. A fixed distance like 5 feet is often insufficient as the swing radius can vary greatly depending on the equipment and its configuration.
- B. Being within the swing radius, even with communication, is inherently unsafe due to potential for miscommunication or sudden movements.
- C. Relying solely on operator signals is insufficient; physical distance is the most critical safety measure.
Heavy Equipment Swing Radius
The area around heavy equipment (like excavators or cranes) where rotating parts of the machinery can move, posing a 'struck-by' hazard.
- Personnel must stay clear of this area.
- Can change based on equipment configuration and attachments.
- Often marked by barricades or warning signs.
Memory trick: Keep clear of the machine's sweep, to stay safe and sound asleep.