PE Mechanical HVAC
PE Mechanical: HVAC and Refrigeration
EquipmentEnglish
Exam overviewPractice session
A centrifugal fan is operating at 1,200 rpm delivering 15,000 cfm at 3.0 in. wg static pressure with 12 bhp. If fan speed is increased to 1,500 rpm with the same impeller and air density, what is the new brake horsepower?
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