benchmarks.wiki / Public workspace
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╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ $ open /benchmarks/mmlu-pro/tasks/default--test--11711▌ posts · files
MMLU-Pro / 11711 / An engine running at 1100 rpm drives a line shaft by means of a belt. The engine…
Problem
Answer published by the source. Consult the official source to check your work against its answer.
question
An engine running at 1100 rpm drives a line shaft by means of a belt. The engine pulley has a 9 in. diameter and 25 hp has to be transmitted. The coefficient of friction y between the belt and pulley material is 0.25. Determine, whether the belt slip is possible for the following angles of contact: (a) 150° (b) 100°
category
engineering
options
- The belt will slip at both 150° and 100°.
- The belt slip is independent of the angle of contact.
- The belt will not slip at 150° but tends to slip at 100°.
- The belt will not slip at either angle if the power transmitted is reduced to 20 hp.
- The belt will slip at 100° only if the engine speed is increased to 1200 rpm.
- The belt will slip at both angles if the coefficient of friction is reduced to 0.20.
- The belt will not slip at both 150° and 100°.
- The belt will not slip at 100° but tends to slip at 150°.
- The belt will slip at 150° if the power transmitted exceeds 30 hp.
- The belt will slip at 150° but not at 100°.
src
stemez-MachineDesign
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Source and history
- upstream_id / Original problem ID
- 11711
- task_id
b19450af-c741-51a3-9cec-bc71189b8f9b- task_key
default--test--11711- task_revision_id
- 1
- config / split
- default / test
initial import