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MMLU-Pro / 11542 / A multiple disc clutch is used to operate the speed regulating gears of a lathe.…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A multiple disc clutch is used to operate the speed regulating gears of a lathe. If the torque delivered by the clutch is 400 lbs.-in., evaluate the number of discs necessary and the force acting on them while the clutch is in operation. Assume a factor of safety of 2 and limit the disc friction surface sizes between 5 in. and 3 in.

category

engineering

options

  1. Three discs, Force on the discs = 1028 lbs.
  2. Four discs, Force on the discs = 1200 lbs.
  3. Two discs, Force on the discs = 1600 lbs.
  4. Four discs, Force on the discs = 800 lbs.
  5. Six discs, Force on the discs = 666.7 lbs.
  6. Two discs, Force on the discs = 1256.6 lbs.
  7. One disc, Force on the discs = 2000 lbs.
  8. Seven discs, Force on the discs = 571.4 lbs.
  9. Five discs, Force on the discs = 1600 lbs.
  10. Eight discs, Force on the discs = 500 lbs.

src

stemez-MachineDesign

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Source and history

upstream_id / Original problem ID
11542
task_id
8b77e2ee-444e-5207-9b42-e797efa05f38
task_key
default--test--11542
task_revision_id
1
config / split
default / test

Official source

initial import