If a centrifugal pump operating with a...

Question 1 / 270705eccef9bbacbc34ba4d454a8

Question 1 of 270705eccef9bbacbc34ba4d454a8

If a centrifugal pump operating with a positive suction head becomes air bound, your FIRST response should be to __________.

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Question 1 of 27070

If a centrifugal pump operating with a positive suction head becomes air bound, your FIRST response should be to __________.

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🔍 Key Concepts

• Centrifugal pump priming and why a positive suction head matters • What it means for a pump to become air bound • Correct sequence of actions: protect the pump, restore liquid flow, then adjust components

💭 Think About

• When a centrifugal pump is air bound, what is actually inside the casing and impeller instead of liquid, and how does that affect pumping ability? • Which action would safely restore a continuous column of liquid to the impeller with the least risk of damage or overload? • Would changing discharge conditions or packing fix the problem inside the casing, or do you need to deal with the trapped air first?

✅ Before You Answer

• Identify which option directly addresses removing trapped air from the pump casing • Confirm which action should be done before changing discharge valve position or adjusting packing • Consider standard pump start-up and recovery from loss of prime procedures in marine engineering practice

Question 1 of 27070

If a centrifugal pump operating with a positive suction head becomes air bound, your FIRST response should be to __________.

vent the casing

close the discharge

tighten the packing

re-prime the pump

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