Large slow-speed diesel engines have...

Question 1 / 2707066636eef28f7522a1c51fd6c

Question 1 of 2707066636eef28f7522a1c51fd6c

Large slow-speed diesel engines have cylinder liners that are manufactured from which of the following materials?

Question 1 of 27070

Large slow-speed diesel engines have cylinder liners that are manufactured from which of the following materials?

🔍 Key Concepts

• Material properties needed for large slow-speed diesel cylinder liners (wear resistance, lubrication, heat transfer) • Microstructure of pearlitic cast iron and the role of flake graphite • Differences in behavior between cast iron and various types of steel in sliding/contact surfaces

💭 Think About

• Which of these materials naturally provides good bearing and self-lubricating characteristics under heavy, slow, sliding contact? • Would you normally want a very hard, high-alloy forged steel surface directly against piston rings, or something that can embed small particles and reduce scoring? • Think about what material is traditionally used for liners in large marine two-stroke engines and why it is chosen over steels.

✅ Before You Answer

• Identify which option includes cast iron and specifically mentions graphite in its structure • Eliminate any materials that are usually used for crankshafts, connecting rods, or high-stress forgings rather than liners • Confirm which material is known for having a good running surface and the ability to retain lubricating oil in its microstructure

Question 1 of 27070

Large slow-speed diesel engines have cylinder liners that are manufactured from which of the following materials?

Unalloyed carbon steel

Pearlitic cast iron with flake graphite

High alloyed forged steel with chromium

Cast steel with chromium

Question 1 / 2707066636eef28f7522a1c51fd6c

Question 1 of 2707066636eef28f7522a1c51fd6c

Large slow-speed diesel engines have cylinder liners that are manufactured from which of the following materials?

Back

Question 1 of 27070

Large slow-speed diesel engines have cylinder liners that are manufactured from which of the following materials?