In the chart shown in the illustration, a...

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Question 1 of 205eccefa1bacbc34ba4d47678

In the chart shown in the illustration, a right hand rotation engine has the #9 piston on top dead center; therefore, the #1 piston is __________. See illustration MO-0039.

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Question 1 of 20

5eccefa1bacbc34ba4d47678

In the chart shown in the illustration, a right hand rotation engine has the #9 piston on top dead center; therefore, the #1 piston is __________. See illustration MO-0039.

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🔍 Key Concepts

• Two-stroke cycle timing – how many crankshaft degrees are in one full cycle and when power vs. compression vs. exhaust occur relative to top dead center (TDC). • Using the TDC degree chart – what it means when a different cylinder (here, #9) is at TDC while #1 is at some number of degrees after its own TDC. • Effect of right-hand engine rotation – which direction on the degree scale represents crankshaft movement after #1 has passed its TDC mark.

💭 Think About

• From the table, when #9 is at TDC, how many crankshaft degrees past #1’s TDC has the engine turned? What does that tell you about #1’s piston position? • In a two-stroke engine, what stroke begins just after TDC? Which stroke is the piston on as it moves down from TDC, and which strokes happen as it approaches and leaves bottom dead center? • If the engine only needs 360° for a full cycle, does 36° of rotation put #1 close to its next TDC, close to its previous TDC, or just slightly after its last TDC? What stroke is associated with that part of the cycle?

✅ Before You Answer

• Use the chart to find exactly what crank angle (in degrees) corresponds to #9 at TDC, referenced from #1 at 0°. • Confirm that in a two-stroke engine, each piston completes a full cycle (intake/compression/power/exhaust) every 360° of crank rotation, not 720° as in a four‑stroke. • Decide whether the piston is moving up or down at that crank angle relative to its last TDC, and then match that direction and position to the correct named stroke among the answer choices.

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Question 1 of 205eccefa1bacbc34ba4d47678

In the chart shown in the illustration, a right hand rotation engine has the #9 piston on top dead center; therefore, the #1 piston is __________. See illustration MO-0039.

Back

Question 1 of 20

5eccefa1bacbc34ba4d47678

In the chart shown in the illustration, a right hand rotation engine has the #9 piston on top dead center; therefore, the #1 piston is __________. See illustration MO-0039.

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?

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