In pumping terms, the vertical distance water must be raised by a pump is referred to as what?

• A. Fracture head
• B. Dynamic head
• C. Total head
• D. Effective height

Answer: (D)

The main idea here is identifying what term describes the vertical lift the pump must overcome. The vertical distance water must be raised by the pump is called the effective height. It represents the height difference the pump needs to overcome to deliver water to the outlet. Other terms relate to different aspects of head: fracture head is about rock fracture pressures, dynamic head includes velocity and friction losses in the system, and total head combines elevation, friction, and velocity losses. Since the question focuses on the pure vertical lift, the effective height best fits.