CERTFICATION EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A 2026
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1. What is metrology primarily concerned with?
A. Manufacturing products
B. Measuring and measurement science
C. Marketing instruments
D. Product transportation
Correct Answer: B. Measuring and measurement science
Rationale: Metrology is the science of measurement, including
standards, accuracy, calibration, and traceability.
2. Which of the following is the SI unit of length?
A. Foot
B. Yard
C. Meter
D. Inch
Correct Answer: C. Meter
Rationale: The meter is the internationally recognized SI base
unit for length.
,3. What is calibration?
A. Repairing an instrument
B. Comparing measurements against a known standard
C. Manufacturing equipment
D. Cleaning instruments
Correct Answer: B. Comparing measurements against a known
standard
Rationale: Calibration verifies and documents measurement
accuracy relative to a recognized standard.
4. Which term refers to the closeness of a measured value to
the true value?
A. Precision
B. Accuracy
C. Repeatability
D. Resolution
Correct Answer: B. Accuracy
Rationale: Accuracy reflects how close a measurement is to the
actual or accepted value.
5. Precision refers to:
,A. Closeness to the true value
B. Consistency of repeated measurements
C. Instrument cost
D. Instrument age
Correct Answer: B. Consistency of repeated measurements
Rationale: Precision indicates repeatability and consistency of
results.
6. What is measurement uncertainty?
A. Instrument damage
B. Estimated range around a measured value
C. Calibration interval
D. Measurement speed
Correct Answer: B. Estimated range around a measured value
Rationale: Uncertainty quantifies doubt associated with a
measurement result.
7. Which instrument is commonly used for measuring external
dimensions with high accuracy?
A. Thermometer
B. Micrometer
C. Voltmeter
D. Barometer
, Correct Answer: B. Micrometer
Rationale: Micrometers provide precise dimensional
measurements.
8. What is traceability in metrology?
A. Equipment storage method
B. Chain of calibrations linked to national standards
C. Shipping process
D. Inspection schedule
Correct Answer: B. Chain of calibrations linked to national
standards
Rationale: Traceability ensures measurements can be related
to recognized standards.
9. Which organization develops international measurement
standards?
A. OSHA
B. BIPM
C. EPA
D. FAA
Correct Answer: B. BIPM
Rationale: The Bureau International des Poids et Mesures
oversees global measurement standards.