Tentamen (uitwerkingen)
Millwright - Rigging and Hoisting Correct Questions & Answers(RATED A+)
- Vak
- Instelling
1. Of a block and tackle with five rope falls and minimum friction, how much force is needed to retain 250lbs? a. 50 lbs b. 100 lbs c. 250 lbs d. 75 lbs - ANSWER a. 50 lbs 250lbs/5 = 50 lbs 2. What diameter rope is needed to support two tons using a vertical lift? a. ½" b. ¾" c....
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