HVAC · Practice-Exam-1 · Problem 64PDFSolution in PDF ↓
HVAC · Practice-Exam-1 · Problem 64
Problem & Solution
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Problem: A centrifugal pump consumes 200 horsepower when operating at 1800 rpm.
Key step: What is the electrical power demand when the pump speed is reduced to 1200 rpm?
Result: These are going to be equal.
✅ Answer: A
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Student questions asked in live office hours about this problem
OH 88: HVAC: Full Practice Exam #64
Q: Prat 6M64, why can't we use QEQS 500GPM Delta T on this one?
A: I think this one might have been inadvertently referring to a different problem. I looked around to see if it was a different Prat 6M or an earlier problem or later problem. But the problem was about the power of a pump.