When can spark-generating tools be used near explosives?

When can spark-generating tools be used near explosives?

• A. Never use any spark-generating tools near explosives.
• B. Use spark-generating tools as needed for efficiency.
• C. Use spark-generating tools only if approved.
• D. Use spark-generating tools without approval in an emergency.

Answer: (C)

Spark-generating tools near explosives pose an ignition risk, so their use must be tightly controlled. Any time such tools are needed, a supervisor or designated authority must approve the work and a permit-to-work with a risk assessment and specified controls must be in place. When approval is granted, safety measures are applied: use non-sparking tools if possible, keep the appropriate distance, ensure removal or venting of flammable vapors, bond and ground equipment, and have a fire watch and clear emergency procedures ready. The essential idea is that ignition sources are only permitted under a documented plan that minimizes risk; proceeding without this approval or in unapproved situations creates unacceptable danger.