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

Which of the following is a common type of pump used in water wells?

1. Centrifugal pump

2. Vertical turbine and submersible

3. Diaphragm pump

4. Gear pump

The correct answer is: Vertical turbine and submersible

The most common types of pumps used in water wells are vertical turbine pumps and submersible pumps. Vertical turbine pumps are designed specifically for deep well applications where the water level is significantly below ground level. They consist of a long shaft with impellers that can lift water from greater depths, making them extremely effective in situations where water needs to be drawn from deep wells. Submersible pumps are also widely used in water wells, particularly when the pump is placed underwater in the well casing. These pumps are sealed to prevent water entry and are designed to push water to the surface, making them ideal for situations where a reliable water supply is needed from deeper sources. Their design allows them to operate efficiently at greater depths without risking damage from the surrounding water or debris. Both vertical turbine and submersible pumps are essential in various water supply systems because they provide reliable and efficient means of extracting groundwater, which is critical for agricultural, municipal, and industrial uses. Other types of pumps mentioned, such as diaphragm and gear pumps, are not commonly used in water wells, as they are better suited for different applications and may not handle the same flow rates or depths effectively.