Ohio Volunteer Firefighter Practice Exam

Question: 1 / 400

What is the psi for a fog nozzle?

25 or 50 psi

50 or 75 psi

The correct answer reflects the standard operating pressures for fog nozzles, which typically operate at pressures between 50 and 75 psi. Fog nozzles are designed to create a wide pattern of water droplets, which can effectively absorb heat and create a cooling effect in firefighting scenarios.

This pressure range is essential because it allows for optimal fog production while maintaining adequate flow rates to suppress fires. Operating below this pressure may lead to insufficient droplet formation, reducing the effectiveness of the nozzle in fighting fires. Conversely, operating at pressures significantly above this range could lead to excessive flow or even damage to the nozzle or hose used, as higher pressures could exceed the design specifications of many firefighting components.

Familiarization with these standard pressures is crucial for firefighters to ensure they are using the equipment effectively and safely.

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75 or 100 psi

100 or 125 psi

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