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MMLU-Pro / 11709 / Determine the force required to raise a load of 3100 lbs., whena 2.5 in. triple…

Problem

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question

Determine the force required to raise a load of 3100 lbs., whena 2.5 in. triple threaded square power screw is used alongwith a collar having an outer diameter 4.5 in. and inner diameter3.0 in. The pitch of thread is 0.5 in. The operating forceis applied at a radius of 38 in. Assume the coefficient of frictionfor both collar and threads as 0.2.

category

engineering

options

  1. 70.5 lbs
  2. 65.5 lbs
  3. 95.5 lbs
  4. 80.5 lbs
  5. 100.5 lbs
  6. 75.5 lbs
  7. 60.5 lbs
  8. 85.5 lbs
  9. 90.5 lbs
  10. 55.5 lbs

src

stemez-MachineDesign

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