Which interphone statement is used during All Call after disarming?

Which interphone statement is used during All Call after disarming?

• A. "_ and _ armed and cross checked"
• B. "_ and _ verified and disarmed"
• C. "Doors safe."
• D. "Disarm complete."

Answer: (B)

During All Call after disarming, the goal is to confirm safety and accountability by stating who verified the action and that the disarming is complete. The phrase that fits this purpose is the one that names two individuals or units and then asserts that they have verified the status and that disarming is done. This communicates both who is responsible for the check and the final safety condition to everyone listening, leaving no ambiguity about whether the system is truly disarmed. The other options don’t provide that verification component. Saying “Doors safe” only covers door status and doesn’t confirm the disarming action or who checked it. “Disarm complete” signals completion but not who verified it, which can reduce safety traceability. “Armed and cross checked” relates to a prior arming step and cross-checking before arming, not the post-disarming verification, so it doesn’t fit the scenario after disarming.

During All Call after disarming, the goal is to confirm safety and accountability by stating who verified the action and that the disarming is complete. The phrase that fits this purpose is the one that names two individuals or units and then asserts that they have verified the status and that disarming is done. This communicates both who is responsible for the check and the final safety condition to everyone listening, leaving no ambiguity about whether the system is truly disarmed.

The other options don’t provide that verification component. Saying “Doors safe” only covers door status and doesn’t confirm the disarming action or who checked it. “Disarm complete” signals completion but not who verified it, which can reduce safety traceability. “Armed and cross checked” relates to a prior arming step and cross-checking before arming, not the post-disarming verification, so it doesn’t fit the scenario after disarming.