Generally, centrifugal pumps operating...

Question 1 of 270705eccef9bbacbc34ba4d45479

Generally, centrifugal pumps operating without a positive suction head must be primed before they will move liquid on their own. The priming is usually accomplished with a __________.

Back

Question 1 of 27070

Generally, centrifugal pumps operating without a positive suction head must be primed before they will move liquid on their own. The priming is usually accomplished with a __________.

🔍 Key Concepts

• Priming: what it means for a centrifugal pump and why it’s needed when there is no positive suction head • Different types of auxiliary pumps used specifically to create suction or vacuum in a line • How a device can use high-velocity fluid to create low pressure and lift another fluid

💭 Think About

• Which option is commonly used as a priming device rather than as the main cargo or bilge pump itself? • Think about which pump type can operate without being flooded and can help remove air from the suction side of a centrifugal pump. • Which of these devices works by using one moving fluid stream to entrain air or another fluid, rather than relying on rotating impellers to move the main liquid directly?

✅ Before You Answer

• Verify which pump type is often described in textbooks as a priming unit for centrifugal pumps. • Check which option is associated with creating low pressure/vacuum in the suction line using another fluid as the driving force. • Eliminate any pump types that normally must be primed themselves and are used as the main system pump, not just as a priming aid.