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Question
The ratio of modulus of elasticity of wood in a direction perpendicular to the grain to the value in a direction to the grain falls is in the range of:
A.
B.
C.
2 to 3
D.
5 to 10
Answer ( Option A)

Solution

Timber have greater strength along direction parallel to grain and much weaker along direction perpendicular to grain. Ratio of modulus of elasticity in a direction perpendicular to the grain to that in direction parallel to the grain is in between

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