Geometric tolerances Flashcards
What is tolerance in engineering drawings?
The total amount a dimension may vary and is the difference between the maximum and minimum limits.
Where are tolerances typically displayed in engineering drawings?
In the title block or as part of the dimensions on a drawing.
How can specific tolerances be displayed on a drawing?
As part of the dimensions, providing the upper and lower tolerance limits.
What are the five types of tolerance?
- form
- profile
- orientation
- location
- runout
What does geometric tolerance data help interpret?
It shows how to understand the specifications for features in engineering drawings.
What does the term ‘maximum material condition’ (MMC) denote?
The condition where a part contains the maximum amount of material.
What does the term ‘least material condition’ (LMC) denote?
The condition where a part contains the least amount of material.
Fill in the blank: The feature must be ______ within a five-hundredths of a millimetre tolerance zone relative to datum feature A.
parallel
What is the significance of datum features in geometric tolerances?
They serve as reference points for positioning and measuring tolerance zones.
True or False: Tolerances can only be displayed in the title block of engineering drawings.
False
What is the cylindrical tolerance zone for the feature in relation to datum features A, B, and C?
One-thousandth of an inch at MMC.
