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In __________ type of cofferdam consists of a mixture of sand and clay which is filled in a bag and placed instead of earth or rock to form a cofferdam.(a) Cellular cofferdam(b) Earth dikes(c) Rock dikes(d) Sand-bag dikes |
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Answer» Right choice is (d) Sand-bag dikes Explanation: The sand-bag dykes or Sand-bag cofferdams are useful for small depth of water. The individual bags are laid in courses as in case of masonry work and the joints are filled with puddle. |
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