The three methods most often used to quantify duct leakage rates are:
A) Cross-sectional analysis, duct pressurization, and leakage area.
B) Percentage of design flow, airflow per 100 sq ft of conditioned space, and leakage area.
C) Leakage area, duct draw down, and cross-sectional analysis.
D) Duct pressurization, duct draw down, and cross-sectional analysis.
B
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