Week 9/10

Question 1

Use a diagram to visualise the cause of indicated variation.

Answer 1

Question 2

Use a diagram to visualise the causes of observed variation.

Answer 2

Question 3

Define Accuracy

Answer 3

The closeness of the agreement between the result of a measurement and the true value of the measurement

Question 4

Define precision

Answer 4

The closeness of the agreement between mutually independent test results obtained under stipulated conditions

Question 5

Define Bias as an alternative to accuracy.

Answer 5

The difference between the observed average of measurements and the reference value.

The reference value, also known as the master value, is a value that serves as an agreed-upon reference for the measured values

Question 6

Define calibration

Answer 6

All the operations of determining the values of the errors of a measuring instrument and adjustment

Question 7

Define Linearity

Answer 7

The difference in the bias values through the expected operating range of the gauge