Liquid column manometers are used for measuring the pressure ______________ kgf/cm2?
Correct answer: D. < 3 (gage)
- A. > 2 (gage)
- B. < atmospheric
- C. < 10 (gage)
- D. < 3 (gage)
Explanation
Liquid-column manometers are mainly used for low to moderate pressure differences, commonly below about 3 kgf/cm² gauge. Higher pressures require impractically tall liquid columns or are measured with mechanical gauges.
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