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Questions and Answers
What type of energy is converted by hydraulic machines into pressure energy?
What type of energy is converted by hydraulic machines into pressure energy?
In which direction does the flow occur in centrifugal pumps?
In which direction does the flow occur in centrifugal pumps?
What principle does a centrifugal pump operate on?
What principle does a centrifugal pump operate on?
What part of a centrifugal pump is responsible for raising the pressure head of the liquid?
What part of a centrifugal pump is responsible for raising the pressure head of the liquid?
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Which part of a centrifugal pump consists of a series of backward curved vanes?
Which part of a centrifugal pump consists of a series of backward curved vanes?
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To what is the impeller of a centrifugal pump connected?
To what is the impeller of a centrifugal pump connected?
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What is the main effect of cavitation on metallic surfaces?
What is the main effect of cavitation on metallic surfaces?
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What is one precaution that should be taken against cavitation?
What is one precaution that should be taken against cavitation?
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How does cavitation affect the efficiency of a turbine?
How does cavitation affect the efficiency of a turbine?
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What does NPSH stand for in the context of pump industry?
What does NPSH stand for in the context of pump industry?
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How is the Net Positive Suction Head (NPSH) calculated?
How is the Net Positive Suction Head (NPSH) calculated?
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Why is it important for the available NPSH to be greater than the required NPSH in pump installations?
Why is it important for the available NPSH to be greater than the required NPSH in pump installations?
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What is the purpose of the casing in a centrifugal pump?
What is the purpose of the casing in a centrifugal pump?
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What type of valve is typically fitted at the lower end of a suction pipe in a centrifugal pump system?
What type of valve is typically fitted at the lower end of a suction pipe in a centrifugal pump system?
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In a multistage centrifugal pump, what is the purpose of connecting impellers in series?
In a multistage centrifugal pump, what is the purpose of connecting impellers in series?
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What happens when the pressure of a flowing liquid falls below its vapour pressure?
What happens when the pressure of a flowing liquid falls below its vapour pressure?
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How do cavitation bubbles affect metallic surfaces in pumps?
How do cavitation bubbles affect metallic surfaces in pumps?
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What defines cavitation in pumps?
What defines cavitation in pumps?
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What differentiates a multistage centrifugal pump for high heads from one for high discharge?
What differentiates a multistage centrifugal pump for high heads from one for high discharge?
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Why is a foot valve used in a suction pipe of a centrifugal pump system?
Why is a foot valve used in a suction pipe of a centrifugal pump system?
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What occurs when more impellers are mounted on the same shaft in a centrifugal pump?
What occurs when more impellers are mounted on the same shaft in a centrifugal pump?
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