Q. For a self locking lifting machine, the efficiency must be (Solved)
1. 50 percent
2. 100 percent
3. more than 50 percent
4. 107 dynes
5. less than 50 percent
- e. less than 50 percent
1. 50 percent
2. 100 percent
3. more than 50 percent
4. 107 dynes
5. less than 50 percent