SSC JE Civil Engineering 2018 Set 6 Solved Paper

Shakes : It is a longitudinal separations in the wood between the annual rings.
Twisted fibres : It is caused by twisting of young trees by fast blowing wind.
Rind galls are the peculiar curved swellings found in the body of a tree.
Knots : It is the branches or limbs which are broken or cut off from the tress.