As shown in figure 2, fresh air entering...

Question 1 of 270705eccef9ebacbc34ba4d46362

As shown in figure 2, fresh air entering through windward doorways and portholes while pushing heat and smoke out leeward doorways and portholes is known as _________. See illustration SF-0013.

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Question 1 of 27070

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As shown in figure 2, fresh air entering through windward doorways and portholes while pushing heat and smoke out leeward doorways and portholes is known as _________. See illustration SF-0013.

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🔍 Key Concepts

• Natural ventilation patterns on a vessel during a fire • Difference between horizontal and vertical ventilation • Role of windward and leeward openings in moving smoke and heat

💭 Think About

• Look at the arrows in Figure 2: are smoke and gases mainly moving up and down, or sideways through doors and portholes? • Which firefighting term describes using doors, windows, and portholes on opposite sides to let wind push fresh air in and smoke out? • Which options sound like they involve mechanical or induced flow versus simple wind-driven flow through openings?

✅ Before You Answer

• Identify whether the primary direction of flow in the illustration is horizontal (side-to-side) or vertical (up-and-down) • Match that flow direction to the standard fire-service ventilation terms used on ships • Eliminate any choices that suggest mechanically induced or more complex circulation patterns not shown in the simple wind-driven diagram