Which is the first bearing designed to...

Question 1 / 270705eccefa1bacbc34ba4d4759f

Question 1 of 270705eccefa1bacbc34ba4d4759f

Which is the first bearing designed to absorb the load created on the piston by combustion in the engine cylinder.

Question 1 of 27070

Which is the first bearing designed to absorb the load created on the piston by combustion in the engine cylinder.

🔍 Key Concepts

• Force path in a piston–connecting rod–crankshaft assembly (where does combustion force act first?) • Difference between reciprocating parts (moving back and forth) and rotating parts (spinning) in an engine • Function and location of wrist pin, crankpin, and crankshaft journal bearings

💭 Think About

• Start at the top of the engine: when combustion happens in the cylinder, which part touches the piston crown directly, and what part connects that to the crankshaft? • Which bearing is located at the joint between the piston and the connecting rod, and which bearings are further down the load path, closer to the crankshaft and shaft line? • Think about the phrase "first bearing" — at what joint does the combustion force first need a bearing surface in order to be transmitted into the rotating parts?

✅ Before You Answer

• Identify the sequence of parts from piston to crankshaft: piston → pin → connecting rod → crankpin → crankshaft journal • Confirm which option is the bearing at the piston–connecting rod connection, not at the crankshaft • Eliminate any bearing whose main purpose is to carry axial thrust from the propeller rather than direct piston combustion load

Question 1 of 27070

Which is the first bearing designed to absorb the load created on the piston by combustion in the engine cylinder.

Crankshaft journal bearing

Crankpin bearing

Wrist pin bearing

Thrust bearing

Question 1 / 270705eccefa1bacbc34ba4d4759f

Question 1 of 270705eccefa1bacbc34ba4d4759f

Which is the first bearing designed to absorb the load created on the piston by combustion in the engine cylinder.

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Question 1 of 27070

Which is the first bearing designed to absorb the load created on the piston by combustion in the engine cylinder.