Which statement best describes CFD pumps based on the given material?

Which statement best describes CFD pumps based on the given material?

• A. CFD pumps are centrifugal pumps
• B. CFD pumps are positive displacement pumps
• C. CFD pumps are rotary vane pumps
• D. CFD pumps are piston pumps

Answer: (A)

The main idea here is how energy is added to the fluid by the pump. CFD pumps described in the material are centrifugal pumps. They work by using a rotating impeller to fling fluid outward, which increases its velocity and then converts that velocity into pressure. This makes the pump’s output depend on the system head and flow in a characteristic dynamic way, rather than delivering a fixed amount of fluid per cycle. That’s what sets them apart from the other types. Positive displacement pumps (like rotary vane or piston pumps) move a fixed volume per cycle, producing high pressure more steadily and with different flow characteristics. So, the description that best fits the material is that CFD pumps are centrifugal pumps.

The main idea here is how energy is added to the fluid by the pump. CFD pumps described in the material are centrifugal pumps. They work by using a rotating impeller to fling fluid outward, which increases its velocity and then converts that velocity into pressure. This makes the pump’s output depend on the system head and flow in a characteristic dynamic way, rather than delivering a fixed amount of fluid per cycle.

That’s what sets them apart from the other types. Positive displacement pumps (like rotary vane or piston pumps) move a fixed volume per cycle, producing high pressure more steadily and with different flow characteristics. So, the description that best fits the material is that CFD pumps are centrifugal pumps.