During the power stroke of a four-stroke/cycl...

Question 1 / 270705eccefa1bacbc34ba4d47520

Question 1 of 270705eccefa1bacbc34ba4d47520

During the power stroke of a four-stroke/cycle diesel engine, most of the side thrust of a trunk-type piston is absorbed by the __________.

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Question 1 of 27070

During the power stroke of a four-stroke/cycle diesel engine, most of the side thrust of a trunk-type piston is absorbed by the __________.

🔍 Key Concepts

• Trunk-type piston design and how it differs from a crosshead-type piston • Where side thrust (lateral force from the connecting rod angle) acts on the piston during the power stroke • Functions of piston skirt, crosshead, and compression rings in absorbing or guiding side forces

💭 Think About

• In a trunk-type piston engine, which components are actually present, and which belong to crosshead-type engines? • Which part of the piston assembly has enough surface area and correct location to bear lateral (side) forces against the cylinder wall? • What is the main job of compression rings compared to the lower part of the piston body?

✅ Before You Answer

• Verify which of the choices is specifically designed to guide the piston in the cylinder and take side thrust • Eliminate any components that primarily handle sealing (gas sealing or oil control) rather than force absorption • Confirm whether a crosshead even exists in a typical trunk-type diesel engine configuration

Question 1 of 27070

During the power stroke of a four-stroke/cycle diesel engine, most of the side thrust of a trunk-type piston is absorbed by the __________.

piston skirt

pinion

crosshead

compression rings