Which of the following is an example of a positive displacement pump?

A) Axial
B) Rotary screw pump
C) Multi-stage centrifugal
D) Single-stage centrifugal


Answer: B
Explanation: A) Incorrect. An axial pump is an example of a dynamic pump.
B) Correct. A rotary screw pump is an example of a positive displacement pump.
C) Incorrect. A multi-stage centrifugal pump is an example of a dynamic pump.
D) Incorrect. A single-stage centrifugal pump is an example of a dynamic pump.

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