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प्रश्न
What do you understand by the following term as applied to screw gauge?
Positive zero error
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उत्तर
Positive zero error: If the zero of the circular scale is below the reference line of the main scale, then the screw gauge is said to have positive zero error and the correction is negative.
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संबंधित प्रश्न
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(ii) The least count and
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