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1. |
__A steel plate d × b is sandwiched rigidly between two timber joists each D × B/2 in section. The steel will be (where Young’s modulus of steel is m times that of the timber).__ |
A. | BD² + mbd²)/6D] |
B. | BD³ + mbd³)/6D] |
C. | BD² + mbd³)/4D] |
D. | BD² + mbd²)/4D] |
Answer» C. BD¬¨‚â§ + mbd¬¨‚â•)/4D] | |