Building Materials
The curved swellings from the growth of layers or wounds left after branches are cut off in an irregular manner are known as

Burls
None of these
Rindgalls
Knots

ANSWER DOWNLOAD EXAMIANS APP

Building Materials
When a brick is immersed in water for 24 hours and then dried, if

50 percent surface is covered with grey or white deposits, the brick has serious efflorescence
No grey or white deposits appear on the surface, the brick is free from soluble salts
All listed here
10 percent surface is covered with grey or white deposits, the brick has slight efflorescence

ANSWER DOWNLOAD EXAMIANS APP