Building Materials
Excess of silica in brick earth results in

None of these
enhancing the impermeability of bricks
cracking and warping of bricks
loss of cohesion

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Building Materials
A queen closer is a

Brick laid with its length 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
Brick laid with its breadth parallel to the face or direction of wall

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