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

1.	Depth of lean concrete bed placed at the bottom of a wall footing, is kept
A.	0 cm
B.	5 cm
C.	qual to its projection beyond wall base
D.	ess than its projection beyond wall base
Answer» D. ess than its projection beyond wall base

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

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