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Question
Wood surface requires ......... coats of plastering:
ydM+h dh lrg dks IykLVj ds fy, --------- dksV~l dh vko';drk gksrh gS&
A.
2 
B.
3 
C.
1 
D.
None of these
Answer ( Option B)

3 

Solution

Wood and metal surface require 3 coats of plastering so that the surface is completely safe and sealed. Stone and brick masonry generally require 2 coats and a single coat is done for low cost construction 

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