GD&T concept check: which term describes the state in which a finished feature contains the maximum amount of material allowed by its size tolerance (for example, smallest hole or largest shaft)?

Introduction / Context:
Geometric tolerancing often references material condition modifiers to relate permissible geometric error to part size. Understanding these states is key for functional gaging and tolerance stack analysis.

Given Data / Assumptions:

• A feature of size (hole or shaft) has stated limits.
• We consider the condition with most material present.
• Standard GD&T terminology is used.

Concept / Approach:
Maximum Material Condition (MMC) is the size at which a feature contains the most material: for a shaft, the largest permissible diameter; for a hole, the smallest permissible diameter. It is commonly marked with the MMC symbol in feature control frames.

Step-by-Step Solution:

Verification / Alternative check:
Functional gages often simulate virtual condition boundaries based on MMC; parts that pass such gages will assemble in worst-case scenarios.

Why Other Options Are Wrong:

• Machined material condition / Maximum machined indication / Machine mark indication: Nonstandard or incorrect terminology.

Common Pitfalls:
Confusing MMC with Least Material Condition (LMC), which is the opposite (smallest shaft, largest hole).

Final Answer:
Maximum material condition