Oil is flowing at 0.015 m^3/s in the system shown below. Oil Specific Weight = 8.80 kN/m^3 Oil Kinematic Viscosity = 2.12 x 10^-5 m^2/s Length of 6 in. pipe = 180 m Length of 2 in. pipe = 8 m Elbows are long-radius Pressure at B = 12.5 MPa Considering all losses, calculate the pressure at Point A in MPa. 2-in Schedule 30 steel pipe 6-in Schedule 80 4.5 m steel pipe Reducer- sudden contraction Flow - A

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Metrology of surface finish

In general terms, the application of scientific principles in the study of measurements is known as metrology. When speaking about measurement, it could be of time, length, microstructures, grain structures, internal crystal discontinuities, surface roughness, measurements of angles, height, width, and so on. While coming to the domain of mechanical engineering, metrology is considered the science of measurements of surface finish, length, surface texture, and angles.