Deck_2014 : Deck General - 1564/2572
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| What is the stress on the hauling part when lifting a 4900 lbs. weight using a twofold purchase rove to least advantage? (Allow 10 percent of the weight per sheave for friction.) |
| A) 980 lbs. |
| B) 1225 lbs. |
| C) 1715 lbs. |
| D) 1837 lbs. |
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