Inspection & Maintenance Procedures Flashcards

What is the first step in inspecting a fire extinguisher?

Answer: Check the pressure gauge

The first step in inspecting a fire extinguisher is to check the pressure gauge. This gauge provides an immediate visual indication of whether the extinguisher is properly charged and ready for use. Without adequate pressure, the extinguishing agent cannot be expelled effectively, rendering the unit useless in an emergency.

How often should a fire extinguisher be inspected?

Answer: Every month

Fire extinguishers should be inspected monthly to ensure they are in proper working order and readily available for use. This regular frequency, as mandated by standards like NFPA 10, allows for prompt identification of issues such as low pressure, damage, or obstructions. Consistent checks are crucial for maintaining readiness and compliance with safety regulations.

What should be done if a fire extinguisher is found to be low on pressure?

Answer: Recharge or replace it

If a fire extinguisher is found to be low on pressure, it indicates that it cannot effectively discharge its contents to suppress a fire. An under-pressurized extinguisher is unreliable and unsafe for use. Therefore, it must either be professionally recharged to restore its operational pressure or replaced with a fully functional unit to ensure fire safety.

Which of the following is a sign that a fire extinguisher needs servicing?

Answer: A cracked or dented body

A cracked or dented body is a clear sign that a fire extinguisher needs servicing. Such physical damage can compromise the structural integrity of the cylinder, potentially leading to failure or rupture under pressure. This makes the extinguisher unsafe and unreliable, requiring immediate attention or replacement.

What is the recommended method to test a fire extinguisher after maintenance?

Answer: Activate it briefly in a controlled environment

After maintenance, the recommended method to test a fire extinguisher is to activate it briefly in a controlled environment. This ensures that all components, such as the nozzle and valve, are functioning correctly without fully expending the extinguishing agent. This is a functional check, not a full discharge test on a live fire, which would require recharging.

What is the function of the safety pin on a fire extinguisher?

Answer: To prevent accidental discharge

The safety pin on a fire extinguisher serves the crucial function of preventing accidental discharge. It locks the operating lever, ensuring that the extinguisher can only be activated intentionally when the pin is removed. This mechanism prevents inadvertent release of the extinguishing agent, maintaining the extinguisher's readiness for an actual fire.

What is the role of the inspection tag on a fire extinguisher?

Answer: To document inspection and maintenance

The inspection tag on a fire extinguisher plays a vital role in documenting its inspection and maintenance history. This tag records the dates of inspections, servicing, and hydrostatic tests, providing a clear audit trail of the unit's condition and compliance. It ensures accountability and confirms that the extinguisher has been regularly checked and is in proper working order.

How often should the internal pressure of a fire extinguisher be checked?

Answer: Every month

The internal pressure of a fire extinguisher is critical for its proper operation, as it provides the force needed to expel the extinguishing agent. Therefore, the internal pressure, typically indicated by a gauge, should be checked every month during routine inspections. This ensures the extinguisher is always ready for immediate and effective use.

Which action should be taken if a fire extinguisher has visible rust or corrosion?

Answer: Remove it from service and replace it

If a fire extinguisher has visible rust or corrosion, it indicates a compromise in the integrity of the cylinder, which can weaken the container and make it unsafe. A corroded extinguisher could fail under pressure, posing a significant hazard. Therefore, it must be immediately removed from service and replaced to ensure safety and compliance.