What does a green gauge reading indicate on a portable fire extinguisher?

What does a green gauge reading indicate on a portable fire extinguisher?

• A. Empty
• B. Partially charged
• C. Overcharged
• D. Charged

Answer: (D)

The gauge on a portable fire extinguisher shows the current pressure inside the cylinder. A green reading means the pressure is within the normal operating range specified by the manufacturer, so the extinguisher is charged and ready to use. If the indicator isn’t in the green zone, it suggests the extinguisher isn’t ready—undercharged or overcharged or in need of service—so it may not function properly in an emergency. In normal maintenance checks, you’ll want the gauge to be in that green area to confirm readiness.

The gauge on a portable fire extinguisher shows the current pressure inside the cylinder. A green reading means the pressure is within the normal operating range specified by the manufacturer, so the extinguisher is charged and ready to use. If the indicator isn’t in the green zone, it suggests the extinguisher isn’t ready—undercharged or overcharged or in need of service—so it may not function properly in an emergency. In normal maintenance checks, you’ll want the gauge to be in that green area to confirm readiness.