B2 Review

Exit

Question 1 of 1

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180
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Calculations of return air duct leakage include:

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305309
0
180
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305310
0
180
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305311
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180
none
305312
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180
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305313
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180
none
305314
0
180
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305315
0
180
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305316
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180
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305317
0
180
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305318
0
180
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305320
0
180
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305321
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305322
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180
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305324
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180
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