Building Materials
A queen closer is a

Brick laid with its length parallel to the face or direction of wall
Brick laid with its breadth parallel to the face or direction of wall
Brick with half the width at one end and full width at the other
Brick having the same length and depth as the other bricks but half the breadth

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

ANSWER DOWNLOAD EXAMIANS APP