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In case of non-cohesive soils such as sand and gravel ___________ reduction in allowable bearing capacity of the soil should be applied, if the water table is situated below or near the bearing surface of the soil.

a) 20%
b) 50%
c) 80%
d) 100%

Answer: b
Explanation: However, if water table is situated below the bearing surface of the soil at a depth equal to the width of the foundation trench, no such reduction should be applied. But in this case, 50% reduction is applied. For intermediate depths of the water table, the proportion and percentage reduction should be applied.

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