The static head of a centrifugal pump is equal to the __________ of suction head and delivery head.


A. product
B. difference
C. sum

• Hs=Suction head (it is vertical height of the center line of pump shaft above the liquid surface in sump from which the liquid is being raised) + hd delivery head (it is vertical height of the liquid is delivered above the center line of the pump shaft).
  
  so option(C) is the answer
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