Final answer:
True The statement is true; the discharge capacities of fire hoses are affected by hose diameter, length, and nozzle design. Diameter influences flow rate, length affects pressure loss, and the nozzle design impacts speed and pressure of discharge. Calculations of Reynolds numbers can confirm turbulent flow conditions.
Step-by-step explanation:
The discharge capacities of fire hoses are indeed dependent on the hose diameter, length, and nozzle design. This statement is true because these factors influence the flow rate and pressure of the water coming out of the hose. The larger the diameter, the more the water that can flow through the hose at one time. The length of the hose affects the pressure drop due to friction, and the nozzle design can modify both the speed and pressure of the discharge for effective firefighting.To confirm the flow is turbulent for the given scenario, we would calculate the Reynolds numbers for the fire hose and nozzle, using the provided dimensions and flow rate. Reynolds numbers significantly above 2000 typically indicate turbulent flow.
These calculations would involve fluid mechanics principles and require additional data such as the velocity of the fluid and its kinematic viscosity.The statement is true. The discharge capacities of fire hoses are indeed dependent on the hose diameter, length, and nozzle design. The diameter of the hose affects the flow rate of water through it. A larger diameter hose allows for a greater volume of water to flow. The length of the hose can also impact the pressure and flow rate. A longer hose may result in greater frictional losses, reducing the discharge capacity. Lastly, the design of the nozzle plays a crucial role in directing and controlling the flow of water from the hose.