Valid M2 Dumps shared by ExamDiscuss.com for Helping Passing M2 Exam! ExamDiscuss.com now offer the newest M2 exam dumps, the ExamDiscuss.com M2 exam questions have been updated and answers have been corrected get the newest ExamDiscuss.com M2 dumps with Test Engine here:
The minimum dimension for rectangular air ducts used to supply combustion air for natural draft systems is _____ inches.
Correct Answer: B
The IMC combustion-air provisions require openings used for combustion air to have a minimum cross- sectional dimension of 3 inches . Where ducts are used, they must be of the same cross-sectional area as the openings to which they connect. That makes 3 inches the correct answer, so Option B is correct.
