NM CID MM-2 Practice Questions - New Mexico CID MM-2 Natural Gas Fitting Examination Exam

Two Category I draft-hood appliances will be common-vented into one Type B vent. What must be verified?

That the common vent is the same diameter as the smaller connector That the common vent and connectors are sized from the UMC Chapter 8 common-vent tables for combined input, available height, and lateral, and that both appliances are Category I That one appliance is Category IV so the vent will drain That the common vent is DWV PVC

Correct Answer:

That the common vent and connectors are sized from the UMC Chapter 8 common-vent tables for combined input, available height, and lateral, and that both appliances are Category I

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