When can flammable liquids be used for cleaning near explosives or within an explosives area?

• A. Always
• B. When authorized by T.O.
• C. Never
• D. Only with supervisor approval

Answer: (B)

The key idea is that any use of flammable liquids in explosives areas is tightly controlled and allowed only with formal authorization documented in the applicable Technical Order. A Technical Order specifies the approved methods, solvents, and safety controls for cleaning near explosives, ensuring compatibility, proper ventilation, ignition source control, and other safeguards. Because of the high fire and explosion risk, simply having supervision or broad permission isn’t enough; the operation must be explicitly authorized by the T.O. to ensure all required precautions are in place.

The other options aren’t appropriate because they imply blanket permission (Always), total prohibition (Never), or reliance on a supervisor’s say-so without the formally approved, documented authorization (Only with supervisor approval).