Which of the following types of steel can have on average up to 1/2 percent (0.25-0.55%) copper content? A. structural steel, B. alloy steel, C. weathering steel, D. stainless steel
C. is correct.
Weathering steel, also known under the trade name COR-TEN, develops a stable rust-like appearance after exposure for several years. are-review.blogspot.com
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
good test question
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