MCQOPTIONS
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| 1. |
If n = number of members andy = number of joints, then for a perfect frame, n =_______________? |
| A. | j-2 |
| B. | 2j-l |
| C. | 2/-3 |
| D. | 3/-2 |
| E. | 2/ -4 |
| Answer» D. 3/-2 | |