OSHA 10-Hour Construction ReviewFocus Four HazardsEasy
A worker is using a portable circular saw on a construction site. Which of the following is an essential safety requirement for operating this tool?
- ARemoving the lower blade guard for better visibility during cuts.
- BWearing loose-fitting gloves to improve grip on the tool.
- CDisconnecting the power cord by pulling on the cord itself, rather than the plug.
- DEnsuring the lower blade guard automatically returns to its covering position when the blade is removed from the work.
Show answer & explanationAnswer & explanation
Correct answer: D. Ensuring the lower blade guard automatically returns to its covering position when the blade is removed from the work.
OSHA standards (1926.304(d)) require that the lower blade guard on a portable circular saw must automatically and instantly return to its covering position when the blade is withdrawn from the work. This protects the worker from accidental contact with the spinning blade.
Why the other options are wrong
- A. Removing guards is a serious safety violation and increases the risk of injury.
- B. Loose-fitting gloves can get caught in moving parts, posing a caught-in hazard.
- C. Pulling on the cord can damage the cord or plug, creating an electrical hazard.
Circular Saw Blade Guard
Portable circular saws are equipped with a lower blade guard that must automatically cover the blade when it's not cutting, preventing accidental contact and serious injury.
- The guard must operate freely and not be tied back or removed.
- It's a primary safeguard against cuts and lacerations.
- Regular inspection of the guard's functionality is required.
Memory trick: Guards Up, Goggles On, Grounded Always.