Answer :
In a closed piping system, the initial flow rate is 4 L per second as indicated by the flow meter at the starting point. However, at the endpoint, the flow meter reads a value of 3.5 L per second. The conclusion drawn from this difference in volumetric flow rates is that there is a leakage or loss of water within the piping system.
Possible explanations for the decrease in flow rate could include:
1. Leakage in the pipes: There might be a crack or opening in the pipes causing water to escape, leading to a reduced flow rate at the endpoint compared to the initial point.
2. Blockage in the pipes: The presence of an obstruction or blockage along the piping system could restrict the flow of water, resulting in a lower flow rate at the endpoint.
3. Changes in pipe diameter: Variations in the diameter of the pipes could also impact the flow rate, causing a reduction in the volumetric flow rate at the endpoint.
Overall, the difference in flow rates between the initial and final points indicates a loss of water within the system, which may be attributed to leakage, blockage, or changes in pipe diameter. Identifying and addressing the cause of this discrepancy is crucial to ensure the efficient operation of the piping system.