Which of the following statements is true concerning centrifugal pumps?()

A . They are particularly suited for pumping high viscosity fluids B . They are started with the discharge valve opened C . The flow of liquid is developed by imparting energy due to the rotation of an impeller D . They are always mounted in a horizontal positio

时间:2022-10-25 19:10:15 所属题库:船舶辅助机械题库

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