Q. A single purchase crab has a handle 45 cm long and a drum of 25 cm diameter. The pinion has 30 teeth and spur has 150 teeth. The efficiency of the machine is 75%. If the maximum force that can be applied is 500 newtons, the maximum load that can be lifted will be (Solved)

1. 9860 N

2. 6750 N

3. 20250 N

4. 1250 N

5. 13500 N

  • b. 6750 N
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