STAIRS

Such diagonal cracks in the slab of the staircase are dangerous.

LIFT SHAFT

Lift Shaft and the Lift should be checked by before using.

Cracks in the lift shaft should be identified on Gides of all walls.

If there are small diagonal cracks it is normal.

But if there are long diagonal cracks then expert advice is required.

WATER TANK

Diagonal cracks (as shown) in the supporting columns of water tanks are dangerous.