SC Heating Practice Questions - South Carolina Heating Contractor Examination Exam

Access More Questions

Using the longest-length method in IFGC 402.4, a natural-gas system (Table 402.4(2)) has a 60-foot meter-to-farthest-outlet length. A branch serving only a 90,000 Btu/h furnace (1,000 Btu/ft³) is how large at minimum, and which length is used to enter the table?

1/2 inch, using the 10-foot branch length only 3/4 inch, using the 60-foot longest length (137 cfh available versus 90 cfh load) 2 inch, because every furnace branch must be 2 inch 1 1/4 inch, using 1,000 feet as a safety factor

Correct Answer:

3/4 inch, using the 60-foot longest length (137 cfh available versus 90 cfh load)

Access more questions from this quiz

Continue to SC Heating Practice Questions - South Carolina Heating Contractor Examination Exam for more practice questions and the full quiz experience.

Access More Questions