__________ is useful when depth of water is about 6 metres to 10 meters.
A. Wood or steel sheeting cofferdam
B. Ohio river type cofferdam
C. Rock-filled crib cofferdam
D. Suspended cofferdam
Answer:A
__________ is useful when depth of water is about 6 metres to 10 meters.
A. Wood or steel sheeting cofferdam B. Ohio river type cofferdam C. Rock-filled crib cofferdam D. Suspended cofferdam