Which statement is true in the case of the term "Precision". The closeness of output readings when the same input is applied repetitively over a short period of time when there is change in condition of measurement. The closeness of output readings when the same input is applied repetitively over a short period of time when there is change in time of measurement. The closeness of output readings when the same input is applied repetitively over a short period of time when there is change in location. The closeness of output readings when the same input is applied repetitively over a short period of time and there is no change in observer.
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.
Which statement is true in the case of the term "Precision".
The closeness of output readings when the same input is applied repetitively over a short period of time when there is change in condition of measurement.
The closeness of output readings when the same input is applied repetitively over a short period of time when there is change in time of measurement.
The closeness of output readings when the same input is applied repetitively over a short period of time when there is change in location.
The closeness of output readings when the same input is applied repetitively over a short period of time and there is no change in observer.
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