SC Heating Practice Questions - South Carolina Heating Contractor Examination Exam

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A hydronic heating main of steel pipe runs 48 feet horizontally. Applying IMC Table 305.4, what is the maximum hanger spacing and the minimum number of hangers if a hanger is placed at each end and intermediate hangers do not exceed the table spacing?

4-foot spacing; 13 hangers 8-foot spacing; 7 hangers 12-foot spacing; a hanger at each end plus intermediate hangers so that no span exceeds 12 feet (5 hangers for equal 12-foot bays) Continuous support only; hangers are prohibited on steel

Correct Answer:

12-foot spacing; a hanger at each end plus intermediate hangers so that no span exceeds 12 feet (5 hangers for equal 12-foot bays)

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