Before using a portable fire extinguisher, the hose and nozzle should be free of what?

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Multiple Choice

Before using a portable fire extinguisher, the hose and nozzle should be free of what?

Explanation:
The hose and nozzle must be free of cracks and obstructions. Cracks weaken the hose and can cause leaks or sudden failure under pressure, while obstructions inside the hose or at the nozzle block or distort the flow, making the discharged extinguishing agent less effective or misdirected. A clear path ensures the agent exits smoothly with the proper flow and reach, which is essential for targeting the fire accurately. Dust, moisture, rust, or corrosion are less directly tied to the immediate readiness of the hose and nozzle, so cracks and obstructions are the key issues to check.

The hose and nozzle must be free of cracks and obstructions. Cracks weaken the hose and can cause leaks or sudden failure under pressure, while obstructions inside the hose or at the nozzle block or distort the flow, making the discharged extinguishing agent less effective or misdirected. A clear path ensures the agent exits smoothly with the proper flow and reach, which is essential for targeting the fire accurately. Dust, moisture, rust, or corrosion are less directly tied to the immediate readiness of the hose and nozzle, so cracks and obstructions are the key issues to check.

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