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