A crankshaft whose center of gravity...

Question 1 of 270705eccefa1bacbc34ba4d475ce

A crankshaft whose center of gravity coincides with its center line is said to be __________.

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Question 1 of 27070

Q

A crankshaft whose center of gravity coincides with its center line is said to be __________.

🔍 Key Concepts

• Difference between static balance and dynamic balance in rotating machinery • Meaning of center of gravity on the center line of rotation • What extra condition is required for dynamic balance beyond just the center of gravity location

💭 Think About

• If the center of gravity lies exactly on the shaft center line and the shaft is at rest, what kind of imbalance (if any) would you feel? • When the shaft is spinning at speed, what additional kind of imbalance can appear even if the center of gravity is on the center line? • Which term describes balance that can be checked by simply letting the part rest on knife edges or rollers without rotating at high speed?

✅ Before You Answer

• Identify which option refers to balance that can be tested without rotation (just by seeing if it tends to roll to a heavy side). • Identify which option refers to balance that applies to high-speed rotation and involves forces in multiple planes. • Eliminate any terms that are not standard classifications of balance in basic rotating machinery theory.