engineering recuitment Punjab SSSB Jr Draftsman Civil Mock Test 2021 Construction Materials and Management Bricks and Mortar
The minimum average compressive strength of common burnt clay brick of class 3.5, as per IS 1077 ∶ 1992, is:
1
3.5 N/cm2
2
3.5 N/mm2
3
3.5 kg/cm2
4
3.5 kg/mm2