Building Materials - Engineering
Q1: The coefficient of hardness of stones used in road work should be greater thanA
10
B
12
C
15
D
17
ANS:D - 17 The coefficient of hardness of stone between 14-17 for building purpose and greater than 17 is used for road.
Coefficient of hardness(Ch) = 20 - (loss of wt./3) |
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