Question:
Q No 21 Measuring instrument intended to define or present
Last updated: 6/12/2023
![Q No 21 Measuring instrument intended to define or present](https://media.kunduz.com/media/sug-question-candidate/20210921152151383843-3397172.jpg?h=512)
Q No 21 Measuring instrument intended to define or present physically conserve or reproduce the unit of measurement of a quantity or a multiple or sub multiple of that unit and to transfer it to other measuring instruments by comparison is known as A Legal measuring standard B Standard Sections C Working standard D Primary standard