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TSSA unit 13 Exam Questions with Correct Answers
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TSSA unit 13 Exam Questions with Correct Answers what best describes a 'Non-spillage Susceptible appliance - Answer-an appliance that has a venting system that will not reverse (backdraft) and spill flue gases in the building due to a negative air pressure of -0.2 in. w.c (5 pa) or less flo...
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