Fitter Trade Test Practice Questions - South Africa Artisan Trade Test - Fitter (and Turner) Exam

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A drawing dimension is shown as 50 H7. In the ISO system of limits and fits used on SA engineering drawings, what does the capital letter H tell the fitter?

It is a shaft with the upper deviation at zero It is a hole with the lower deviation at zero (basic size as the minimum) It is the tolerance grade number It indicates a transition fit

Correct Answer:

It is a hole with the lower deviation at zero (basic size as the minimum)

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