- Building Materials - Section 1
- Building Materials - Section 2
- Building Materials - Section 3
- Building Materials - Section 4
- Building Materials - Section 5
- Building Materials - Section 6
- Building Materials - Section 7
- Building Materials - Section 8


Building Materials - Engineering
Q1: The cracks which extend from bark towards the sap wood in the cross section of a tree, are calledA
radial shakes
B
star shakes
C
heart shakes
D
cup shakes.
ANS:B - star shakes Cup shakes are formed due to non-uniform growth of a tree or excessive bending by cyclones or winds. In this case, the shakes develop between annual rings and separate them partly. |


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