Mastering Measurement Standards in Science and Mathematics

The video tutorial discusses the standards of measurement, which are essential references for comparing measuring devices. It explains the importance of these standards in calibrating instruments and minimizing errors. The standards are classified into international, primary, secondary, and working standards, each serving different functions and maintained by various organizations. International standards are based on global agreements and maintained by the International Bureau of Weights and Measurements. Primary standards are maintained by national laboratories for calibrating secondary standards. Secondary standards are used in industrial labs and calibrated against primary standards. Working standards are used in general labs and have lower accuracy than secondary standards.

What is the primary purpose of standards in measurement?

• To create new measurement units

• To increase the cost of measuring instruments

• To compare and calibrate measuring devices

• To eliminate the need for measuring devices

Which of the following is NOT a type of standard mentioned?

• Tertiary standards

• Primary standards

• International standards

• Working standards

Where are international standards maintained?

• University research centers

• International Bureau of Weights and Measurements

• Local industry offices

• National laboratories

What is the main function of primary standards?

• To calibrate secondary standards

• To replace working standards

• To calibrate international standards

• To be used by the general public

Who maintains primary standards?

• National standards laboratories

• Private companies

• Local industries

• International organizations

What is the role of secondary standards?

• To serve as a reference for working standards

• To replace primary standards

• To be used in international agreements

• To be used by the general public

Which standards are used to check general laboratory instruments?

• Primary standards

• International standards

• Secondary standards

• Working standards

How does the accuracy of working standards compare to secondary standards?

• They are more accurate

• They have the same accuracy

• They are two orders less accurate

• They are one order less accurate