Following are the results ofa field unit weight deternination test on the s ne soil with the Moisture content of moist soil -116 % Mass of jar+ cone + sand (after use) -2.81 kg Calibrated mass of Standard sand to fill the cone Mass of moist soil from hole-3.331 Kg sand cone method: Determine the dry unit weight of compaction in the field. Calibrated dry density of Standard sand -1667 kg/m Mass of jar + cone + sand (before use) - 5.99 kg 0.117 kg
Theory and Design for Mechanical Measurements
Measurement is a term that refers to analyzing a manufactured component regarding the degree of accuracy for dimensions, tolerances, geometric profile, roundness, flatness, smoothness, etc. Measurement always involves comparing the manufactured component or the prototype with a standard specimen whose dimensions and other parameters are assumed to be perfect and do not undergo changes with respect to time.Precisely in mechanical engineering the branch that deals with the application of scientific principles for measurements is known as metrology. The domain of metrology in general deals with various measurements like mechanical, chemical, thermodynamic, physical, and biological measurements. In mechanical engineering, the measurements are limited to mechanical specific such as length, mass, surface profile, flatness, roundness, viscosity, heat transfer, etc.
Basic principles of engineering metrology
Metrology is described as the science of measurement, precision, and accuracy. In other words, it is a method of measurement based on units and predefined standards.
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