Texas Commission on Environmental Quality (TCEQ). Class C Water License Exam

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Prepare for the Texas Commission on Environmental Quality (TCEQ) Class C Water License Exam. Utilize flashcards, multiple choice questions, and in-depth explanations. Equip yourself with the skills to succeed!

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What is the purpose of check values on the discharge side of a pump?

To ensure the pump is fully operational
To prevent water from flowing back through the pump
To measure the flow rate
To regulate pressure

The correct answer is: To prevent water from flowing back through the pump

The purpose of check valves on the discharge side of a pump is to prevent water from flowing back through the pump. Check valves are designed to allow fluid to flow only in one direction, which is essential in maintaining the system’s efficiency and preventing backflow. When the pump is operational, water is pushed through the discharge line; if there were no check valve in place, the water could flow back into the pump when it is not actively pumping or if there is a drop in pressure. This backflow could lead to potential damage to the pump and could disrupt the overall system operation. By ensuring that water does not reverse direction, check valves help maintain the priming of the pump and protect it from issues related to reverse flow. This functionality is critical in various applications where consistent flow direction must be maintained to uphold system integrity and performance.