railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Error Analysis
Which of the following statements are correct?
1. Accuracy is the closeness with which an instrument approaches the true value of the quantity being measured.
2. Precision is a measure of the reproducibility of the measurement.
3. Precision of an instrument can be improved upon by calibration.
4. Accuracy may be specified in terms of limits of errors.1
1, 2 and 3 only
2
1, 3 and 4 only
3
1, 2 and 4 only
4
2, 3 and 4 only