Question

A measurement of 27 MPa was made with a pressure gauge with a statistical uncertainty of 100 kPa. The manufacturer lists a 3% uncertainty associated with this instr combined uncertainty for this measurement? 0.82 MPa 0.10 MPa 0.67 MPa 0.91 MPa

Answer 1

Solution 7 measurable por measurable pressine - 27mpa Statistical uncertainty = lookPa Instrument uncertainty = 3% 7 & Instrument uncertainty = 3% of 27 mpa Instrument uncertainty = 3x 27 mpa loo = Inshement uncertainty = 0.81 mpa This combined uncertainty is given as no Combined uncertainty = (statistical & Instrument) - (lookpat 0.81mpa) - 10.100 mpa + 0.81 mpa) Combined uncertainty - 0.91 MPa This option o.glmpa is CORRECT