Higher pitch of the roof
i) results in stronger roof
ii) results in weaker roof
iii) requires more covering material
iv) requires less covering material
The correct answer is

A. H₂S and CO₂ B. CaSO₄ and H₂O C. Lime and H₂O D. CO₂ and calcium

A. Run at right angles B. Parallel C. Inclined at 45° D. Inclined at 60°

A. Thinner B. Vehicle C. Pigment D. All the above

A. Stone masonry B. Brick walls C. Both (A) and (B) D. Neither (A) nor (B)