ENGINEERING METROLOGY AND MEASUREMENTS ME2304 ANNA UNIVERSITY QUESTION BANK

ME 1304 � ENGINEERING METROLOGY AND MEASUREMENTS

IMPORTANT QUESTIONS

PART � A (2 Mark QUESTIONS)

UNIT -1

1. Define the following terms :
i) Sensitivity�.
ii) Readability �.
iii) Repeatability �.
iv) Reproducibility�.
v) Interchangeability�.
vi) Reliability�.
vii) Uncertainty �.
viii) Need of Calibration��. of an Instrument
2. Distinguish between Line and End standards. Give examples.
3. Define Abbe�s principle of measurement.
4. Define static and dynamic characteristics (static and dynamic response) of a measuring instrument.
5. Discuss about fundamental and derived units in detail.

UNIT � 2

1.What is wringing of slip gauges?
2.What are the standards of slip gauges?
3.What is a Limit gauge? Write the Taylor�s principle of gauge design.
4.Explain the working principle of Laser micrometer.
5.What is a comparator? Classify comparators.

PART � B QUESTIONS ( 16 marks QUESTIONS)

UNIT -1

1.Write down the differences between Precision & Accuracy
2.Differentiate random errors from systematic errors
3.Explain the types of errors with examples
4.Explain the causes of errors with suitable examples
5.Explain the classification of measuring methods.

UNIT � 2

1.Explain the working principle of Johansson �Microkator� with a neat sketch
2.Explain with a sketch the working principle of Sigma comparator
3.With a neat sketch, Describe the principle of Solex Pneumatic Comparator
4.With a neat sketch, explain the working principle of micro optic Autocollimator.
5.With a neat sketch, explain the working principle and applications of Angle Dekkor.
6.Briefly explain the various elements of Optical Bevel Protractor with a neat sketch.

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