Lubricating oil used in a diesel engine...

Lubricating oil used in a diesel engine...

Question 1 of 270705eccefa2bacbc34ba4d478e1

Lubricating oil used in a diesel engine serves to __________.

Question 1 of 27070

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Q

Lubricating oil used in a diesel engine serves to __________.

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🔍 Key Concepts

• functions of lubricating oil in a diesel engine (not just one job) • how friction and wear affect bearings • how heat is removed from bearing surfaces and piston/liner areas

💭 Think About

• Think about every job lube oil does as it flows through bearings and back to the sump—does it only reduce friction, or does it also carry something away? • When lube oil forms a film between moving parts, what effect does that have on sealing clearances? • Ask yourself: if one of the listed effects were NOT provided by the oil, would the engine still be protected during continuous operation?

✅ Before You Answer

• Verify which of the listed choices are true statements about what lube oil actually does in a running diesel engine. • Check your engineering knowledge: does lubricating oil help remove heat from bearings? • Consider whether it also helps seal clearances between moving parts (like rings/liners and bearings) in addition to reducing wear.