Building Construction
Depth of lean concrete bed placed at the bottom of a wall footing, is kept

10 cm
Less than its projection beyond wall base
15 cm
Equal to its projection beyond wall base

ANSWER DOWNLOAD EXAMIANS APP

Building Construction
Slate

Has a smooth surface and contains alumina and silica
Splits into thin sheets along its bedding planes
Is a metamorphic rock
Possesses good water absorption capacity

ANSWER DOWNLOAD EXAMIANS APP