What is zero error in vernier calipers Share with your friends Share 0 Ria answered this Please find this answer 2 View Full Answer David answered this Positive?zero error?refers to the case when the jaws of the?vernier caliperare just closed and the reading is a positive reading away from the actual reading of 0.00mm. If the reading is 0.10mm, the zero error?is referred to as +0.10 mm. 0