While underway at sea, one of three...

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Question 1 of 205eccef9dbacbc34ba4d45d5f

While underway at sea, one of three available centrifugal salt water service pumps is in operation with a sea water temperature of 50°F. The operating temperature of all the systems supplied by this pump appear to be high. Your next proper course of action would be to __________.

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🔍 Key Concepts

• centrifugal pump priming and air binding and how trapped air affects pump flow and system temperatures • difference between running pumps in parallel vs fixing the cause of low seawater flow • why a casing vent valve exists on a seawater service pump and when it should be used

💭 Think About

• If all systems are running hot, what does that tell you about the actual seawater flow rate through the system, regardless of pressure readings? • What common problem can occur in a centrifugal seawater pump when operating in colder water that would reduce flow without obvious mechanical damage? • Which option not only keeps cooling water to the systems but also actively corrects the likely problem with the original pump?

✅ Before You Answer

• Identify which answer choice addresses the root cause of poor cooling rather than just adding more pumps • Check which option makes specific use of the casing vent valve, and recall why that valve is installed on the pump • Verify that the chosen option maintains continuous cooling to the systems while you troubleshoot the first pump

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