Lube oil pumps taking suction from the sump...

Question 1 / 205eccefa2bacbc34ba4d47934

Question 1 of 205eccefa2bacbc34ba4d47934

Lube oil pumps taking suction from the sump of most small marine engines are usually __________.

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Question 1 of 20

5eccefa2bacbc34ba4d47934

Lube oil pumps taking suction from the sump of most small marine engines are usually __________.

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🔍 Key Concepts

• Most small marine engine lube oil systems must supply oil at a steady pressure to bearings and moving parts. • Think about how suction from a sump and delivery through narrow oil passages affects the type of pump needed. • Compare how centrifugal vs. positive displacement pumps behave when system resistance (back pressure) changes.

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• Which pump type is best at delivering a fairly constant flow and pressure even if the engine speed or line resistance changes? • If the lube oil passages become more restricted (thicker oil, colder temperature), which pump type will still move oil reliably without easily losing its flow? • Which of the listed pump types is commonly used for precise lubrication rather than just bulk transfer of liquids?

✅ Before You Answer

• Recall that centrifugal pumps lose flow quickly as discharge pressure increases; does that fit a critical lube system? • Consider whether diaphragm or eductor pumps are normally used for engine lubrication, or for other purposes like bilge/chemical transfer. • Make sure the pump type you choose is one that is typically used for engine lube oil service on small marine diesels, not just for general pumping.

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Question 1 of 20

Lube oil pumps taking suction from the sump of most small marine engines are usually __________.

diaphragm type

eductor type

centrifugal type

positive displacement type

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Question 1 / 205eccefa2bacbc34ba4d47934

Question 1 of 205eccefa2bacbc34ba4d47934

Lube oil pumps taking suction from the sump of most small marine engines are usually __________.

Back

Question 1 of 20

5eccefa2bacbc34ba4d47934

Lube oil pumps taking suction from the sump of most small marine engines are usually __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed