Coast Guard Exams
Question 258General Subjects - QMED70% to pass

Which of the following statements is true concerning centrifugal pumps?

AI Explanation
The correct answer is C) The flow of liquid is developed by imparting energy due to the rotation of an impeller. Centrifugal pumps work by using an impeller that rotates and imparts kinetic energy to the fluid, causing it to flow through the pump. This rotation of the impeller is what develops the flow of the liquid, making C the correct statement. The other options are incorrect: A) Centrifugal pumps are not particularly suited for high viscosity fluids, which are better handled by positive displacement pumps. B) Centrifugal pumps can be mounted in either a horizontal or vertical position. D) Centrifugal pumps should be started with the discharge valve partially closed to avoid overloading the motor.