NATE Gas Heating Service Practice Questions - NATE Gas Heating (Air) Service Specialty Certification Exam

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A service technician measures the manifold gas pressure on a residential natural-gas furnace. What is the typical target value?

3.5 in. w.c. 7 in. w.c. 11 in. w.c. 0.5 in. w.c.

Correct Answer:

3.5 in. w.c.

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