The grip length of well is taken as _________ below the scour level in roads.
A. ½ R
B. 1½ R
C. 1/3 R
D. 1 R
Answer:C
The grip length of well is taken as _________ below the scour level in roads.
A. ½ R B. 1½ R C. 1/3 R D. 1 R