Question

What symbol, placed in a feature control frame, indicates how μch, or if, any extra geometric tolerance is available for the feature as the actual mating size of the feature changes?

a) Delta
b) Epsilon
c) Phi
d) Σ

Answer 1

The epsilon symbol indicates the extra geometric tolerance available for a feature as its size changes.

Step-by-step explanation:

The symbol that indicates how much or if any extra geometric tolerance is available for a feature as the actual mating size of the feature changes is the epsilon symbol.

The epsilon symbol, denoted by the letter ε of the Greek alphabet, is used in a feature control frame to provide allowances for variations in the size of the feature. It represents the maximum amount by which the feature's size can deviate from its nominal size without affecting its functionality.

For example, if a hole has a nominal diameter of 10mm and an epsilon tolerance of ε/-0.1mm, it means that the actual diameter of the hole can range from 9.9mm to 10.1mm, while still being within the acceptable tolerance limits.