Question

What's the product of alloying copper with zinc? What "point defect" are zinc molecules? 1 Prob 10 a. Dimension lumber is called “orthotropic". What does this mean? b. Is most dimension and engineered structural lumber from coniferous or deciduous trees?

Answer 1

i) copper and Zinc is known as Brass ) alloy of Brass In Brass, Zinc atoms are almost similar size as that The alloy made with the mixture of of copper atoms so Zinc aloms replaces some of copper atoms in the alloy Brass. Therefore, to zinc carne molecules has Substitutional Point Depect in the iv) Dimensional lumber is the wood lumber which is most common type of lumber. Dimensional lumber ave ortho- it means that the properly of dimensional lumber at a particular point, which diepers along three muhoolly - orthogono! axis - Orthobrobie materials ave anisotropic materials becouse their properties changes when there are moosured along different disetion. Therefore, dimensional lumber is anisotropic material in Yes, most dimension lumber & engineered struchsvol lumbes made from coniferous or cocidyow breas. lumber manufachevers brefers Softwood trees more their harchoud trees for making lumber. tropic materia are