Question: 1. Differentiate the terms 'precision and 'accuracy. 2. Define static calibration, Why it is necessary ? 3. Why tolerance are specified ? 4. State the


1. Differentiate the terms 'precision and 'accuracy". 2. Define static calibration, Why it is necessary ? 3. Why tolerance are specified ? 4. State the 'Taylor's principle' for the design of limit gauges. 5. Define 'snug fit' and 'selective fit', 6. State some of the disadvantages of stylus-type surlace texture measuring instrument. 7. Name the instrument which measures the horizontal and vertical angular displacement simultaneously. 8. Give some of the precautions to be followed in using sine bars. Doling aplive and passive transducers. Give examples for each type.
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