what do you mean by zero error of a screw gauge? how is it accounted for
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as it is either below or above the base line of the main scale. In this condition, the screw gauge is referred to have zero error. which can be both negative and positive. The zero error can be accounted by. subtracting the zero error (with sign) from the reading observed to obtain the actual reading.
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as it is either below or above the base line of the main scale. In this condition, the screw gauge is referred to have zero error. which can be both negative and positive. The zero error can be accounted by. subtracting the zero error (with sign) from the reading observed to obtain the actual reading.]
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