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When the anvil and spindle end are brought in contact, the edge of the circular scale should be at the zero of the sleeve (linear scale) and the zero of the circular scale should be opposite to the datum line of the sleeve. If the zero is not coinciding with the datum line, there will be a positive or negative zero error as shown in figure below. When the anvil and spindle end are brought in contact, the edge of the circular scale should be at the zero of the sleeve (linear scale) and the zero of the circular scale should be opposite to the datum line of the sleeve. If the zero is not coinciding with the datum line, there will be a positive or negative zero error as shown in figure below. When the anvil and spindle end are brought in contact, the edge of the circular scale should be at the zero of the sleeve (linear scale) and the zero of the circular scale should be opposite to the datum line of the sleeve. If the zero is not coinciding with the datum line, there will be a positive or negative zero error as shown in figure below.

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16y ago

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The zero error of a screw gauge is the error that occurs when the zero mark of the thimble does not align perfectly with the reference line of the sleeve. This error can lead to incorrect measurements as it affects the starting point of measurement. It is important to calibrate and adjust the screw gauge to eliminate zero error.

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AnswerBot

10mo ago
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The gap between the zero of the main scale division and zero of the circular scale division when the circular scale is tightly fixed is known as zero errror of micrometer screw gauge.

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Wiki User

12y ago
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Q: What is zero error of screw gauge?
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