83. Tunnelling method especially useful over soft strata/water bearing ground is known as:
(^) Plenum (B) Steering method
(C) Primary lining (D) Ground pressure
84. The average height of the waves that are observed over a period, considering the highest one
third of the waves in a group of waves is called as:
(^) High storm wave (B) Significant wave
(C) Low storm wave (D) Average wave
85. This force reduces the apparent weight and hence, the marine....
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