What factors affect pressure loss in a hose?

The correct choice highlights the critical aspects that influence pressure loss in a hose system, specifically focusing on hose inside diameter, hose length, and flow rate.

Hose inside diameter is crucial because a larger diameter allows for a greater volume of fluid to flow through with less resistance, thus reducing pressure loss. Conversely, a smaller diameter creates more friction against the hose walls, leading to increased pressure loss over the length of the hose.

Hose length also plays a significant role in pressure loss. As the fluid travels through the hose, it encounters friction with the hose walls, and the friction loss accumulates over longer distances. Therefore, a longer hose will typically lead to greater pressure loss than a shorter hose, assuming all other factors remain constant.

Flow rate refers to the speed at which the fluid moves through the hose. Higher flow rates increase the velocity of the fluid, which in turn increases friction and can lead to higher pressure loss. This relationship is often characterized by the Hagen-Poiseuille equation, which explains how pressure drop varies with flow rate in a given diameter.

Together, these three factors—hose inside diameter, hose length, and flow rate—provide a comprehensive overview of the mechanics of fluid dynamics within hoses, highlighting the interconnected nature of these variables in understanding