Which five items must you check when preflighting the portable water fire extinguisher?

Which five items must you check when preflighting the portable water fire extinguisher?

• A. Wire seal intact; Cartridge visible; Red light aligned; No corrosion; Secure
• B. Wire seal intact; Cartridge visible; Red light misaligned; No corrosion; Secure
• C. Wire seal broken; Cartridge visible; Red light aligned; No corrosion; Secure
• D. Wire seal intact; Cartridge not visible; Red light aligned; Corrosion present; Secure

Answer: (A)

Preflight checks for a portable water fire extinguisher focus on confirming it’s ready to use by verifying five things: the tamper seal is intact, the cartridge is visible, the pressure/charge indicator shows the unit is charged (red light aligned), there is no corrosion on the extinguisher body, and it is securely mounted and accessible. This combination is the best because each item confirms a different aspect of readiness: an intact wire seal means the extinguisher hasn’t been used or tampered with; a visible cartridge ensures the pressurizing component is present; a red light aligned on the indicator confirms the unit is charged and capable of discharging properly; lack of corrosion indicates the unit’s integrity and effectiveness are preserved; and being securely mounted guarantees it will be available and won’t shift or become stuck during handling or an emergency. If you encountered a broken seal, an obscured or missing cartridge, a misaligned indicator, visible corrosion, or an unsecured unit, any of those would signal the extinguisher isn’t ready for use.

Preflight checks for a portable water fire extinguisher focus on confirming it’s ready to use by verifying five things: the tamper seal is intact, the cartridge is visible, the pressure/charge indicator shows the unit is charged (red light aligned), there is no corrosion on the extinguisher body, and it is securely mounted and accessible.

This combination is the best because each item confirms a different aspect of readiness: an intact wire seal means the extinguisher hasn’t been used or tampered with; a visible cartridge ensures the pressurizing component is present; a red light aligned on the indicator confirms the unit is charged and capable of discharging properly; lack of corrosion indicates the unit’s integrity and effectiveness are preserved; and being securely mounted guarantees it will be available and won’t shift or become stuck during handling or an emergency. If you encountered a broken seal, an obscured or missing cartridge, a misaligned indicator, visible corrosion, or an unsecured unit, any of those would signal the extinguisher isn’t ready for use.