TFS · Practice Exam 2 · Problem 60 PDF Solution in PDF ↓
TFS · Practice Exam 2 · Problem 60
Problem & Solution
PDF: Practice Exam #2-60.pdf
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  • - Problem: A single phase 240 volt motor drives a pump that supplies a hundred pounds per minute of 80 degree water and adds 400 feet of pressure head.
  • - Approach: So to do that we'll use the mass flow rate in the density and you should always remember that mass flow rate is density times volume flow rate.
  • - Key values: 70 %, 90 %, 3 in
  • - Reference: look up, reference handbook
  • - Result: It's got to be in feet over 3960 that gives us a hydraulic horsepower of 1.21 horsepower and now we'll use that to find the input electrical power to ...
  • - ✅ Answer: D
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MPEP OH Prep Dashboard Problem 60 · Practice Exam 2 PDF-Embedded Format