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| Q. |
After using all the joint conditions, how many unknowns are still left? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» C. 2 | |
| Explanation: rotation at point b and at point c in either of beam is not known (they are both equal). | |
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