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| Q.52 | A prestressed concrete beam of 400 mm × 650 mm has span of 5m and is subjected to udl of 16KN/m including self-weight of the beam. The prestressing force is 900 KN. Determine the extreme fibre stresses in concrete at mid span section. | |
| Ans | A. −5.23 N/mm2 and −1.69 N/mm2 | |
| B. 5.23 N/mm2 and 1.69 N/mm2 | ||
| C. −5.23 N/mm2 and 1.69 N/mm2 | ||
| D. 5.23 N/mm2 and −1.69 N/mm2 |
Correct Ans: B
