For steels containing more than ____ % carbon, preheating and subsequent heat treatment generally are required.
A. 0.30
B. 0.40
C. 30
D. 40
Answer: B
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104°?F = ?
A. ?26°?C B. ?40°?C C. ?58°?C D. ?90°?C
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Why are split-system installation valves typically NOT used following installation?
A) They are usually stuck in the closed position. B) They do not control flow to service ports. C) They limit flow to the service ports. D) They are usually stuck in the open position.
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When installing bottom chord temporary bracing what is the maximum on-center spacing allowed if no truss design drawings are available?
A) 10' B) 15' C) 20' D) 5'
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Solve Problem using Excel.
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