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Building Materials - Engineering

Q1:

Inner part of a timber log surrounding the pith, is called

A sapwood

B cambium layer

C heart wood

D none to these.

ANS:C - heart wood

The innermost layer is called pith or medulla layer surrounding pith is heartwood the outermost is the bark the layer present before bark is the bast layer before bast is cambium the ring shaped formation of wood are annular rings small rays present inside the annular rings are medullary rays.