Limit gauges — progressive type A progressive limit gauge is designed so that the “GO” and “NOT GO” members are arranged how?

Introduction / Context:
Limit gauges implement the Taylor principle for checking maximum and minimum material conditions quickly. Progressive gauges speed up inspection by allowing both limits to be checked without withdrawing and reinserting the gauge.

Given Data / Assumptions:

• Gauge body with stepped sections for GO and NOT GO checks.
• Feature under inspection is typically a slot, keyway, or similar dimension.
• Operator seeks rapid pass–fail assessment in one motion.

Concept / Approach:
In a progressive gauge, the GO section enters first; continuing insertion immediately meets the NOT GO step if the work is oversize/undersize beyond limit. This arrangement puts both functional limits on the same side to enable a single linear pass. In contrast, double-ended gauges place GO at one end and NOT GO at the opposite end, requiring repositioning.

Step-by-Step Solution:
Apply Taylor principle: GO checks all related features; NOT GO checks one element.Use stepped arrangement to verify limits progressively in one insertion.Therefore, progressive = both members on the same side (stepped).

Verification / Alternative check:
Metrology guides illustrate progressive plug/snap gauges showing stepped lands labeled GO then NOT GO along one approach direction.

Why Other Options Are Wrong:
Separate members defeat the progressive concept; end-to-end arrangement is a double-ended gauge, not progressive; random orientation is poor practice; single GO cannot check both limits.

Common Pitfalls:
Forcing gauges causing wear; ignoring periodic calibration leading to drift and false accept/reject.

Final Answer:
“GO” and “NOT GO” members on the same side in a stepped (progressive) arrangement