Which type of soil has a greater angle of repose, the internal angle between the surface of the pile and the horizontal surface? A. wet clay, B. wet sand C. dry gravel with sand, D. dry sand
Answer is B. wet sand would have the greatest angle of repose (about 45 degrees) of these materials.
What is the minimum spacing of bolts specified by AISC? and preferred spacing? A. 1 1/4 times the diameter of the bolt; 2 times preferred B. 1 3/4 times the diameter of the bolt; 2 1/4 times preferred C. 2 1/3 times the diameter of the bolt; 2 2/3 times preferred D. 2 2/3 times the diameter of the bolt; 3 times preferred E. 3 times the diameter of the bolt; 3.25 times preferred
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