Which of the following produces maximum pressure difference for transportation of gases ?
Correct answer: D. Compressors
- A. Vacuum pumps
- B. Blowers
- C. Fans
- D. Compressors
Explanation
Fans and blowers produce relatively small pressure rises, whereas compressors are designed to produce the large pressure differences needed for gas transportation and compression. Vacuum pumps serve mainly to reduce pressure below atmospheric pressure.
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