In general, friction loss in hoses tends to what as hose length increases?

In general, friction loss in hoses tends to what as hose length increases?

• A. Increases
• B. Decreases
• C. Remains constant
• D. Varies unpredictably

Answer: (A)

Friction loss accumulates along the hose. For a given flow rate and hose diameter, every additional foot of hose adds more resistance as water rubs against the interior walls, so the total energy lost to friction rises with length. In practical terms, you’ll see friction loss scale roughly with length—often estimated as friction loss per 100 feet times the length in hundreds of feet. Doubling the hose length roughly doubles the friction loss. The trend holds alongside effects from diameter and flow (smaller diameter or higher flow increases loss), but the main idea is that longer hose means more friction and thus greater pressure loss, which is why pump pressure must account for that when extending a line.

Friction loss accumulates along the hose. For a given flow rate and hose diameter, every additional foot of hose adds more resistance as water rubs against the interior walls, so the total energy lost to friction rises with length. In practical terms, you’ll see friction loss scale roughly with length—often estimated as friction loss per 100 feet times the length in hundreds of feet. Doubling the hose length roughly doubles the friction loss. The trend holds alongside effects from diameter and flow (smaller diameter or higher flow increases loss), but the main idea is that longer hose means more friction and thus greater pressure loss, which is why pump pressure must account for that when extending a line.