Centrifugal pump heads: Relationship among static head, suction head, and delivery head. Assume definitions with negligible pipeline losses for clarity. Choose the correct relation for the static head.
Mechanical Engineering
Hydraulic Machines
Difficulty: Easy
Choose an option
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AStatic head = suction head + delivery head
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BStatic head = delivery head − suction head
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CStatic head = suction head × delivery head
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DStatic head = delivery head / suction head
Answer
Correct Answer: Static head = suction head + delivery head
Explanation
Definitions
- Suction head (H_s): vertical distance between source level and pump centerline (positive if source is below pump).
- Delivery head (H_d): vertical distance between pump centerline and delivery level.
- Static head: net elevation difference from source free surface to delivery free surface.
RelationStatic head = H_s + H_d (ignoring losses).
Final AnswerStatic head is the sum of suction head and delivery head.