Limit gauges — ring gauge application A ring gauge is most appropriately used to perform which dimensional check during inspection?

Introduction / Context:Limit gauges provide rapid pass–fail decisions for mass inspection without reading numerical values. Recognizing which gauge suits shafts versus holes is essential for shop-floor quality control and interchangeability of parts.

Given Data / Assumptions:

• Ring gauge is a hardened, precisely sized ring, often with GO and NO-GO ends or zones.
• Workpiece features include external cylindrical elements (shafts, studs).
• Standard gauge tolerance systems apply (GO checks maximum material condition).

Concept / Approach:Ring gauges verify external diameters: the GO ring should pass over a correct shaft (within size), while the NO-GO ring should not pass. Conversely, plug gauges (cylindrical ends) check internal diameters of holes. Feeler gauges assess clearances indirectly, not dimensional size limits of shafts.

Step-by-Step Solution:Identify feature type: external cylinder → ring gauge.Apply GO/NO-GO principle to confirm size compliance quickly.Conclude ring gauge use is for shafts/studs, not holes.

Verification / Alternative check:Inspection manuals specify plug gauges for holes and ring gauges for shafts; this pairing enables fast fit verification (e.g., H7/g6 fits).

Why Other Options Are Wrong:Holes require plug gauges; clearances are measured with feelers or dial indicators; micrometer calibration uses gauge blocks or standards, not ring gauges alone.

Common Pitfalls:Using worn gauges without periodic calibration; forcing NO-GO gauge leading to false acceptance or damage.

Final Answer:Check the diameter of shafts or studs (external GO/NO-GO)