The foundation bed is provided with a downward slope of __________ towards the hill side.
A. 1 in 6
B. 1 in 5
C. 1 in 3
D. 1 in 1
Answer:A
The foundation bed is provided with a downward slope of __________ towards the hill side.
A. 1 in 6 B. 1 in 5 C. 1 in 3 D. 1 in 1