Question 1 of 27070
Q
Which of the listed conditions can lead to cavitations in a centrifugal pump?
A
Vapor pockets formed in the suction flow stream.
B
Rough casing volute surfaces.
C
Worn wearing rings.
D
Partial restriction in the discharge valve.
Question 1 / 270705eccef9bbacbc34ba4d454bd
Question 1 of 270705eccef9bbacbc34ba4d454bd

Which of the listed conditions can lead to cavitations in a centrifugal pump?

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Question 1 of 27070
Q

Which of the listed conditions can lead to cavitations in a centrifugal pump?

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🔍 Key Concepts

• Cavitation in pumps and how vapor bubbles form and collapse • The difference between suction side problems and discharge side problems in centrifugal pumps • How net positive suction head (NPSH) and low pressure areas relate to bubble formation

💭 Think About

• Which option directly involves the formation of vapor bubbles in the liquid before it reaches the impeller? • Think about where pressure is lowest in a centrifugal pump system: suction side or discharge side? Which condition would most likely drop pressure below vapor pressure? • Some answers describe wear or roughness – do these create vapor bubbles, or do they mainly affect efficiency and leakage?

✅ Before You Answer

• Identify which choice explicitly mentions vapor formation in the flowing liquid. • Decide whether cavitation is primarily a suction-side, low-pressure issue or a discharge-side, high-pressure issue. • Separate conditions that cause mechanical inefficiency or leakage from those that actually cause vapor bubble formation and collapse.