Ncarb Practice exam - Case study 1- Question 7/9
Can anyone explain if the answer that NCARB shares for the question 7/9 in case study 1 is correct?
To calculate the CFM of (4) bays, should we first fine the volume of the bays - multiply the total SQFT with the height (24') of the bay and then multiply by CFM (1.5)?
Please explain
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I'm assuming the above is the question.
Regarding the answer: the table presents the CFM requirements of various spaces, the relevant one for this being auto repair bays. The CFM requirement is defined as CFM/SF. Factoring the height is irrelevant in this example due to the parameters set by the Minimum Exhaust Rates table. There may be questions that require cubic footage to calculate CFM, but for this instance, it doesn't.
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This one also tripped me up. After I reveiewed the anwser, I see now that the table shows the CFM requirement per cfm/sf for the auto repair bays. Very tricky, as other questions in this practice test have you calculate by cubic feet and require the area multiplied by the height of the area.
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