A steel plate d x b is sandwiched rigidly between two timber joists each D x B/2 in section. The moment of resistance of the beam for the same maximum permissible stress in timber and steel will be (where Young's modulus of steel is m times that of the timber).

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A steel plate d x b is sandwiched rigidly between two timber joists each D x B/2 in section. The moment of resistance of the beam for the same maximum permissible stress   in timber and steel will be (where Young's modulus of steel is m times that of the timber).

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1.	A steel plate d x b is sandwiched rigidly between two timber joists each D x B/2 in section. The moment of resistance of the beam for the same maximum permissible stress in timber and steel will be (where Young's modulus of steel is m times that of the timber).
A.	<img src="/_files/images/civil-engineering/theory-of-structures/87-21-72-1.png">
B.	<img src="/_files/images/civil-engineering/theory-of-structures/87-21-72-2.png">
C.	<img src="/_files/images/civil-engineering/theory-of-structures/87-21-72-3.png">
D.	<img src="/_files/images/civil-engineering/theory-of-structures/87-21-72-4.png">
Answer» C. <img src="/_files/images/civil-engineering/theory-of-structures/87-21-72-3.png">

A steel plate d x b is sandwiched rigidly between two timber joists each D x B/2 in section. The moment of resistance of the beam for the same maximum permissible stress in timber and steel will be (where Young's modulus of steel is m times that of the timber).

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