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1 以內測爪量測24.98mm環規時,游標卡尺的讀值為25.02mm,當量測工件的讀值為25.34mm,則工件的正確尺寸為
A 25.30mm
B 25.34mm
C 25.40mm
D 25.46mm
誤差值=量測值-理論值,25.02-24.98=0.04,0.04=25.34-x,x=25.30,所以工件的正確尺寸為25.30mm