What should you do with smoke alarms, pilot lights, and flame or spark producing equipment when using combustible dust?

What should you do with smoke alarms, pilot lights, and flame or spark producing equipment when using combustible dust?

• A. Turn off smoke alarms, pilot lights, and flame or spark producing equipment
• B. Leave smoke alarms on
• C. Remove batteries
• D. Shield alarms

Answer: (A)

When handling combustible dust, the risk of ignition comes from heat, flames, or sparks. To minimize that risk during dust‑producing work, you temporarily eliminate ignition sources in the area by turning off anything that could ignite the dust, including pilot lights and other flame or spark producing equipment. Smoke alarms are also turned off to prevent nuisance alarms from dust in the air, though this should be done only under proper safety procedures with a plan to re‑activate them as soon as the work is finished. Leaving alarms on could lead to false triggers that complicate safety, and removing batteries or shielding alarms doesn’t address the underlying ignition risk and isn’t a reliable safety measure in this context.

When handling combustible dust, the risk of ignition comes from heat, flames, or sparks. To minimize that risk during dust‑producing work, you temporarily eliminate ignition sources in the area by turning off anything that could ignite the dust, including pilot lights and other flame or spark producing equipment. Smoke alarms are also turned off to prevent nuisance alarms from dust in the air, though this should be done only under proper safety procedures with a plan to re‑activate them as soon as the work is finished. Leaving alarms on could lead to false triggers that complicate safety, and removing batteries or shielding alarms doesn’t address the underlying ignition risk and isn’t a reliable safety measure in this context.