Which scenario would cause the elevator to move to a predetermined alternate floor?

Which scenario would cause the elevator to move to a predetermined alternate floor?

• A. Fire danger on a designated recall floor
• B. Normal operation
• C. After maintenance
• D. Power outage

Answer: (A)

When a fire or fire danger is detected, elevators are put into recall mode. The controller sends the car to a designated recall floor (a predetermined safe floor) and takes the elevator out of normal service to prevent use during the emergency. This recall floor acts as a safe landing for occupants and a controlled point for responders, ensuring the shaft isn’t used where smoke or heat could travel and that access to the car is centralized at a known location. That’s why the scenario described—fire danger on a designated recall floor—best fits the situation where the elevator moves to that predetermined alternate floor. In normal operation, the car follows calls rather than moving to a specific floor by design. After maintenance, the elevator isn’t automatically recalled to a preset floor unless a fire condition triggers it. A power outage generally disrupts operation or requires an emergency power sequence, but it isn’t the standard mechanism for moving to the predetermined recall floor during a fire event.

When a fire or fire danger is detected, elevators are put into recall mode. The controller sends the car to a designated recall floor (a predetermined safe floor) and takes the elevator out of normal service to prevent use during the emergency. This recall floor acts as a safe landing for occupants and a controlled point for responders, ensuring the shaft isn’t used where smoke or heat could travel and that access to the car is centralized at a known location.

That’s why the scenario described—fire danger on a designated recall floor—best fits the situation where the elevator moves to that predetermined alternate floor. In normal operation, the car follows calls rather than moving to a specific floor by design. After maintenance, the elevator isn’t automatically recalled to a preset floor unless a fire condition triggers it. A power outage generally disrupts operation or requires an emergency power sequence, but it isn’t the standard mechanism for moving to the predetermined recall floor during a fire event.