10 free CEA practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
CEA Practice Test 2Tutor mode
Question 1 of 10
Heating, Ventilation & Air Conditioning Systems
Demand-controlled ventilation will cut an air handler's outdoor air from 8,000 cfm to 5,000 cfm during 2,500 occupied heating hours per year. Average space temperature is 70°F and average outdoor temperature during those hours is 40°F. Heat comes from a gas-fired coil with 80% seasonal efficiency at $1.10/therm. Considering sensible heat only, determine the annual heating cost savings.