If during fueling a hazard is detected and evacuation is called, what should N2 and N4 do?

When a hazard is detected during fueling and an evacuation is ordered, it is crucial for the cabin crew to ensure that the evacuation can proceed smoothly and safely. N2 and N4 are typically responsible for the doors and slides on an aircraft.

Re-arming the slides at any door that can be used for evacuation is essential. This action ensures that the evacuation slides are ready to deploy immediately when the order to evacuate is given, allowing passengers to exit the aircraft quickly and safely. Timely preparation can significantly enhance passenger safety and help manage the evacuation effectively in a potentially dangerous situation.

In contrast, the other options do not facilitate immediate safety and preparedness during an evacuation scenario. For instance, waiting for further instructions might delay necessary actions that need to occur promptly. Commencing the boarding process or checking the fuel supply does not address the active danger and could place passengers and crew at further risk. Therefore, re-arming the evacuation slides aligns perfectly with the goals of ensuring safety and readiness in an emergency situation.