During refueling, which action is recommended to minimize fire risk?

• A. Keep engines running
• B. Smoke
• C. Use a different nozzle
• D. Shut off engines and electrical equipment

Answer: (D)

During refueling, the key danger comes from fuel vapors that can ignite if there’s a spark or heat source. Shutting off engines and electrical equipment removes those ignition sources and reduces the chance of a fire starting. Keeping engines running would keep heat and potential sparks, smoking introduces a direct flame, and changing nozzles doesn’t address the ignition risk. So, turning off both engines and electrical systems is the safest, most effective measure to minimize fire risk.