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When something has been calibrated, which of the following must have been used?
o
A. gift wrap
B. a vehicle
C. protective gear
D. a measuring system


Sagot :

      A  measuring system  is usually used in the process of calibration. This measuring system is seen as a standard to calibrate a new device.

 What is Calibration ?

Calibration could be said to mean the comparison between an instrument to an already established standard. This is also said to mean referencing an instrument to a known standard.

   

Although the process of calibration may vary among several systems, equipment known as calibrators (measuring system) are generally used.

Therefore, according to the question, the correct option is Measuring system.

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