What must crew members do when an evacuation order is given?

When an evacuation order is given, crew members must stay calm and follow protocol. This response is crucial because maintaining composure helps to reassure passengers and facilitates an organized and efficient evacuation process. Following established protocols ensures that safety measures are adhered to, reducing confusion and preventing potential injuries during the evacuation.

Knowing the specific procedures that have been trained helps crew members direct passengers to safety effectively and manage the situation in a manner that prioritizes everyone's well-being. In emergency situations, the ability to stay calm and implement proper protocols can make a significant difference in the outcome.

Other options such as evacuating immediately without instructions or checking all compartments could lead to chaos or delays, while contacting all passengers personally is impractical and may not be possible in a high-pressure situation, further emphasizing that adherence to protocol is the best course of action.