engineering recuitment PPSC JE Civil Mock Test 2022 Construction Materials and Management Building Component
Which among the following two waterproofing systems will help to prevent the capillary rising of water from the ground to the concrete floor?
i. Drainboards behind the wall
ii. Horizontal water stops
iii. Weep holes
iv. Injection of pore filling chemicals
1
i and ii
2
ii and iii
3
i and iii
4
ii and iv