Optimum economic pipe diameter for fluid is determined by the___________________?
Correct answer: C. Total cost considerations (pumping cost plus fixed cost of the pipe)
- A. Viscosity of the fluid
- B. Density of the fluid
- C. Total cost considerations (pumping cost plus fixed cost of the pipe)
- D. None of these
Explanation
The economic diameter minimizes total annual cost by balancing the pipe's fixed or installation cost against pumping cost. Fluid properties such as viscosity and density affect the calculation, but neither alone determines the optimum diameter.
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