Metrology MCQ
Metrology MCQ includes key topics like accuracy, precision, gauges, measurement instruments, calibration, and industrial inspection. These objective questions help students strengthen measurement science concepts and prepare for mechanical and production engineering exams.
Q1. Metrology is the science of?
A. Manufacturing
B. Measurement
C. Machining
D. Tool design
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Q2. The main purpose of metrology is?
A. Reduce cost
B. Ensure accuracy of measurements
C. Increase sales
D. Improve painting
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Q3. A Vernier caliper can measure up to an accuracy of?
A. 0.1 mm
B. 0.02 mm
C. 1 mm
D. 0.5 mm
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Q4. The least count of a micrometer is usually?
A. 0.1 mm
B. 0.01 mm
C. 1 mm
D. 0.5 mm
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Q5. Pitch of a metric screw thread is measured in?
A. Inches
B. Millimeters
C. Centimeters
D. Degrees
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Q6. Slip gauges are used for?
A. Rough measurements
B. Precision measurements
C. Painting
D. Drilling
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Q7. Which instrument measures small angular distances?
A. Vernier caliper
B. Sine bar
C. Micrometer
D. Feeler gauge
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Q8. A dial indicator is used to measure?
A. Surface roughness
B. Small displacements
C. Temperature
D. Hardness
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Q9. Which instrument is used for measuring internal diameter?
A. Outside micrometer
B. Inside micrometer
C. Screw gauge
D. Feeler gauge
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Q10. Surface plate is made of?
A. Cast iron
B. Granite
C. Steel
D. Aluminium
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Q11. Which is used for flatness measurement?
A. Dial gauge
B. Straight edge
C. Sine bar
D. Height gauge
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Q12. Gauge blocks are also called?
A. Slip gauges
B. Ring gauges
C. Plug gauges
D. Thread gauges
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Q13. Which instrument measures hardness?
A. Rockwell tester
B. Micrometer
C. Sine bar
D. Vernier scale
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Q14. Which is NOT a type of fit?
A. Clearance fit
B. Transition fit
C. Tolerance fit
D. Interference fit
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Q15. H7/g6 refers to?
A. Surface finish
B. Type of fit
C. Material type
D. Cutting tool
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Q16. Tolerance is?
A. Exact size
B. Difference between maximum and minimum size
C. Surface property
D. Weight measure
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Q17. Feeler gauges measure?
A. Pressure
B. Gap or clearance
C. Diameter
D. Length
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Q18. Roundness is checked using?
A. Profile projector
B. Dial test indicator
C. Roundness tester
D. Height gauge
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Q19. Which instrument is used to measure gear tooth profile?
A. Gear tooth caliper
B. Micrometer
C. Sine bar
D. Slip gauge
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Q20. Straightness error is checked using?
A. Dial gauge
B. Straight edge + dial
C. Pyrometer
D. Thermometer
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Q21. Which type of error occurs due to wear of instrument?
A. Random error
B. Systematic error
C. Environmental error
D. Observational error
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Q22. Precision refers to?
A. Closeness to true value
B. Repeatability of measurement
C. Instrument cost
D. Ease of use
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Q23. Accuracy refers to?
A. Close to true value
B. Repeat measurements
C. Large variations
D. Measurement speed
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Q24. The instrument used for thread measurement is?
A. Micrometer
B. Thread gauge
C. Screw gauge
D. Height gauge
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Q25. Interferometer works based on?
A. Thermal expansion
B. Light interference
C. Electromagnetism
D. Fluid pressure
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Q26. Go-No-Go gauges are used for?
A. Rough measurement
B. Limit checking
C. Temperature measurement
D. Hardness test
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Q27. Which gauge checks bore diameter?
A. Ring gauge
B. Plug gauge
C. Slip gauge
D. Tape gauge
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Q28. Which factor affects measurement accuracy?
A. Temperature
B. Color of component
C. Paint type
D. Lighting only
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Q29. Profile projector is used for?
A. Weight measurement
B. Dimensional inspection
C. Heat testing
D. Load testing
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Q30. Micrometer screw gauge works on?
A. Rack and pinion
B. Screw principle
C. Hydraulic system
D. Magnetism
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