HVAC · Practice-Exam-1 · Problem 56
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HVAC · Practice-Exam-1 · Problem 56
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Problem: A threaded 3-quarter inch pipe has 490 degree long radius elbows and 645 degree elbows.
Approach: So as a reminder, if you search the reference handbook for fittings losses, you'll find the equation that we need here which is HF minor.
Key step: The volume flow rate is 5GPM.
Watch out: A little bit lower, which makes sense because it's not bending quite as much only 45 degrees.
Result: Second squared is going to cancel and feet squared over feet will just equal 1 foot.
✅ Answer: D
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