TCFP Plans Examiner Practice Test

What is necessary when a water source does not create proper pressure for gravity flow?

1. Larger size pipes in the mains

2. Pumps to raise the system's pressure

3. Computer-controlled pressure regulators

4. Negative coefficient of friction loss

The correct answer is: Pumps to raise the system's pressure

When a water source cannot generate sufficient pressure for gravity flow, it becomes crucial to introduce pumps into the system to enhance the pressure. Pumps are designed specifically to elevate the water's pressure, allowing for effective distribution throughout the system, even when relying on sources that lack the natural gravitational force to propel the water. In scenarios where gravity alone cannot facilitate effective flow or force the water through the required infrastructure, the implementation of pumps is essential. They actively move water, overcoming the challenges posed by inadequate pressure and ensuring that water reaches its intended destination efficiently. Larger pipes might seem beneficial in reducing friction loss, but they do not address the fundamental problem of low pressure. Similarly, computer-controlled pressure regulators can help manage pressure levels, but they don’t generate pressure themselves, thus may not solve the primary issue if the source is insufficient. The concept of negative coefficient of friction loss is not applicable in this context, as it refers to a theoretical phenomenon that does not appropriately address the need for increased pressure from a source. Therefore, pumps are the necessary solution for this issue.