____________________ are not mandatory in civil engineering projects like road works, dams, canals, etc.
a) Contour dams
b) Contour maps
c) Level vials
d) Foot screws
____________________ are not mandatory in civil engineering projects like road works, dams, canals, etc.
a) Contour dams
b) Contour maps
c) Level vials
d) Foot screws