Exam (elaborations)
Millwright - Rigging and Hoisting Exam Questions with Verified Answers
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Millwright - Rigging and Hoisting Exam Questions with Verified Answers 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 - CORRECT ️️ 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. 1" d. ¼" - CORRECT ️️ a. ½" 3. What is the standard safety factor to consider for a platform supporting people? a. 1 : 1 b. 5 : 1 c. 10 : 1 d. 15 : 1 - CORRECT ️️ c. 10 : 1 4. If a wire rope has a breaking strength of 15,000 lbs, determine the safe working load under normal lifting conditions. a. 2,000 lbs b. 3,000 lbs c. 5,000 lbs d. 15,000 lbs - CORRECT ️️ b. 3,000 lbs
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millwright rigging and hoisting exam
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