railway RRB JE (CBT I + CBT II) Mock Test 2024 Construction Materials and Management Bricks and Mortar
Fill in the blank with the correct option:
As per IS10719557 & 1970 code specifications, bricks with compressive strength not less than __________ kg/cm2 are termed as First-class bricks.
1
140
2
105
3
70
4
100