When large area consisting water depth up to 21m which cofferdam is su – McqOptions

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1.	When large area consisting water depth up to 21m which cofferdam is suitable?
A.	Double walled cofferdam
B.	Concrete cofferdam
C.	Cellular cofferdam
D.	Rock-filled crib cofferdam
Answer» D. Rock-filled crib cofferdam

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