Which statement correctly describes intake in natural ventilation?

Which statement correctly describes intake in natural ventilation?

• A. Above normal depth of bilge water
• B. Cowling or opening on exterior of boat
• C. Pulls air supply
• D. Exhausts air to atmosphere

Answer: (C)

Intake in natural ventilation refers to the act of drawing outside air into the interior. It describes pulling air supply into the boat, driven by pressure differences that move air from outside to inside through openings like cowling or vents. The physical opening provides the pathway, but the key idea is the pulling action that brings fresh air in. Exhaust is the opposite, pushing air out to the atmosphere, and bilge water depth has no role in this process.

Intake in natural ventilation refers to the act of drawing outside air into the interior. It describes pulling air supply into the boat, driven by pressure differences that move air from outside to inside through openings like cowling or vents. The physical opening provides the pathway, but the key idea is the pulling action that brings fresh air in. Exhaust is the opposite, pushing air out to the atmosphere, and bilge water depth has no role in this process.