1.

what is absolute pressure

Answer»

Absolute pressure is the pressure measured with absolute zero taken as a reference. Hence, a perfect vacuum, called absolute zero, is the datum. Gauge pressure is the pressure measured with atmospheric pressure taken as its datum.

Absolute pressureis zero-referenced against a perfect vacuum, so it is equal to gaugepressureplus atmosphericpressure. Gaugepressureis zero-referenced against ambient airpressure, so it is equal toabsolute pressureminus atmosphericpressure. Negative signs are usually omitted.



Discussion

No Comment Found

Related InterviewSolutions