The construction of the main propulsion...

Question 1 / 205eccefa1bacbc34ba4d47235

Question 1 of 205eccefa1bacbc34ba4d47235

The construction of the main propulsion engine lube oil sump should __________.

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Question 1 of 20

5eccefa1bacbc34ba4d47235

The construction of the main propulsion engine lube oil sump should __________.

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🔍 Key Concepts

• Purpose of a lube oil sump in a main propulsion engine and how it affects lubrication reliability • How oil circulation and return from bearings/engine spaces back to the sump should work (rapid vs delayed return) • Practical sump shape and piping design to avoid sludge pockets, air entrainment, or pump starvation

💭 Think About

• Think about what design feature would best prevent the lube oil pump from sucking air if the vessel pitches, rolls, or the oil level drops slightly. • Which option would help keep oil cool, clean, and quickly available to the pump suction rather than trapped or delayed in the system? • Consider what an absolutely flat or sharply cornered sump bottom might cause in terms of sludge accumulation and incomplete drainage.

✅ Before You Answer

• Which option most clearly supports continuous, reliable oil supply to the pump suction under all sea conditions? • Eliminate any choice that would trap oil or sludge rather than let it drain freely toward the suction. • Ask whether the option would help maintain proper oil circulation and quick return from engine spaces back to the sump.

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Question 1 of 20

The construction of the main propulsion engine lube oil sump should __________.

have no plating joints of 90°

retain the lube oil as long as possible before it recirculates through the system

provide drain/return lines that are no greater than 24 inches from the pump suction

be provided with only a perfectly horizontal bottom

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Question 1 / 205eccefa1bacbc34ba4d47235

Question 1 of 205eccefa1bacbc34ba4d47235

The construction of the main propulsion engine lube oil sump should __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d47235

The construction of the main propulsion engine lube oil sump should __________.

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