单项选择题
Increasing the speed of a centrifugal pump will result in an increase in its capacity in its capacityAnother means of increasing the capacity pump is to increase the（）
A.diameter of the discharge piping, with all other factors remaining the same B.diameter of the suction piping, with all other factors remaining the same C.width of the impeller only D.diameter of the impeller
单项选择题 Which of the following statements is correct with regards to the operation of a centrifugal cargo pump?（）
单项选择题 The static suction head of is the （）
单项选择题 A pump is defined as device that（）
