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For those who have taken the exam, I'd like to know if there were questions about the spec numbers for standards cited in Y14.5. I've seen some on some practice exams. Thanks, Dan

I understand. I found the text in Y14.5 2009 below. The LMC callout is based on the actual minimum material envelope because this represents the LMC of the hole, and the MMC callout is based on the actual mating envelope because this represents the MMC of the hole. Sorry if this was already...

for a hole, the axis of the hole.

Doesn't the positional tolerance depend on the size whether it's zero at MMC or zero at LMC? In both cases there's ONLY a (bonus)positional tolerance when the feature departs from LMC or MMC.

You asked what should lie within the tolerance zone and I said zero at lmc. That is answer b (the correct answer to the exam question) What am I confusing here?

Zero at lmc for the first question

Thank you for the explanation! Do you know why the answer to 1) is b and not d? And the same for 2), why d and not b.

I'm having an issue understanding the answers to the following questions. They're from a practice exam for the GD&T senior certification. 1) A tolerance of position or orientation is totally dependent on the size of unrelated actual minimum material envelope of the considered feature when...