SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

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A 20 ft by 25 ft refrigeration machinery room is occupied by two technicians. What minimum normal mechanical exhaust rate does IMC 1105.6.3.1 require based on the area/person rules (ignoring the separate 18°F temperature-rise check)?

40 cfm (20 cfm per person) 250 cfm (0.5 cfm per square foot) 500 cfm (1.0 cfm per square foot) 100 cfm (flat machinery-room minimum)

Correct Answer:

250 cfm (0.5 cfm per square foot)

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