SC Structural Framing Practice Questions - South Carolina Structural Framing Contractor Examination Exam

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ASTM F3125 Grade A325 (Group A) and Grade A490 (Group B) high-strength bolts are most clearly distinguished by which property?

A325 is stainless; A490 is carbon steel A325 may only be snug-tight; A490 may only be fully pretensioned A325 has a minimum tensile strength of 120 ksi; A490 has a minimum tensile strength of 150 ksi A325 is 1 inch diameter and smaller; A490 is only made above 1-1/2 inches

Correct Answer:

A325 has a minimum tensile strength of 120 ksi; A490 has a minimum tensile strength of 150 ksi

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