In a screw gauge, if the zero of the head scale lies above the pitch scale axis, the zero error is.

positive

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zero

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negative

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Solution

The correct option is C negative
When the plane surface of the screw and the opposite plane stud on the frame are brought into contact, if the zero of the head scale lies above the pitch scale axis, the zero error is negative.

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In a screw gauge, if the zero of the head scale lies above the pitch scale axis, the zero error is.

The correct option is C negativeWhen the plane surface of the screw and the opposite plane stud on the frame are brought into contact, if the zero of the head scale lies above the pitch scale axis, the zero error is negative.

The correct option is C negative
When the plane surface of the screw and the opposite plane stud on the frame are brought into contact, if the zero of the head scale lies above the pitch scale axis, the zero error is negative.