What signal indicates that a fire extinguisher needs to be recharged?

What signal indicates that a fire extinguisher needs to be recharged?

• A. The gauge reads in the red zone
• B. The extinguisher feels cold
• C. The safety pin is missing
• D. The nozzle is clogged

Answer: (A)

A fire extinguisher indicates that it needs to be recharged when the gauge shows a reading in the red zone. The red zone signifies that the pressure is too low for effective operation, meaning the extinguisher may not function properly when needed. Proper functioning extinguishers should have their gauge indicator in the green zone, which indicates that they are fully charged and ready for use. The other conditions, while potentially indicative of issues with the extinguisher, do not directly signal the need for recharging. A cold feeling may suggest that the extinguisher has been exposed to low temperatures or its contents are reacting in an unexpected way, but it doesn't reflect the charge level. A missing safety pin could indicate a lack of readiness or prevent accidental discharge, and a clogged nozzle could obstruct the flow of the extinguishing agent, but these conditions do not relate to the extinguisher's pressure status.

A fire extinguisher indicates that it needs to be recharged when the gauge shows a reading in the red zone. The red zone signifies that the pressure is too low for effective operation, meaning the extinguisher may not function properly when needed. Proper functioning extinguishers should have their gauge indicator in the green zone, which indicates that they are fully charged and ready for use.

The other conditions, while potentially indicative of issues with the extinguisher, do not directly signal the need for recharging. A cold feeling may suggest that the extinguisher has been exposed to low temperatures or its contents are reacting in an unexpected way, but it doesn't reflect the charge level. A missing safety pin could indicate a lack of readiness or prevent accidental discharge, and a clogged nozzle could obstruct the flow of the extinguishing agent, but these conditions do not relate to the extinguisher's pressure status.