| Q.28 | Which of the following specifications for second class building is true? | |
| Ans | A. A damp proof course of 2.5 cm cement concrete 1 : 1 ½ : 3 with 1 kg of Impermo per bag of cement and painted with two coats. | |
| B. A damp proof course of 2 cm of crude oil concrete 1 : 2 : 4 with standard water proofing material. | ||
| C. Damp proof course of 2 cm thick cement mortar 1 : 2 mixed without water proofing material. | ||
| D. Damp proof course of 2 cm thick cement mortar 1 : 2 mixed with standard water proofing material. |
Correct Ans Provided: B
