A centrifugal pump used to pump water is used to pump an oil with specific gravity of 0.8 at the same rate. The power consumption will now_________________?
Correct answer: D. Decrease
- A. Increase
- B. Data insufficient to predict
- C. Remain same
- D. Decrease
Explanation
At the same flow rate and pump head, power is proportional to the liquid's specific weight. Oil with a specific gravity of 0.8 therefore requires less power than water, approximately 80% as much.
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