Two Technicians Discussing the Use of a Split-Ball Gauge

Understanding Split-Ball Gauges

Neither technician is correct in their description of a split-ball gauge. Technician A is incorrect because these gauges are used for smaller bores, not large ones. Technician B is describing a feeler gauge, not a split-ball gauge.

Explanation: Both technicians appear to be confusing two different measurement tools. A split-ball gauge, also known as a telescoping gauge, is a type of internal measurement tool commonly used to measure the internal diameter of holes or bores, which aligns with Technician A's description. However, this tool is not designed for large bores, but rather for small and medium-sized ones, making his statement partially incorrect.

Moving on to Technician B, his description resembles a feeler gauge, not a split-ball gauge. A feeler gauge is a tool that consists of several small lengths of steel of different thicknesses with measurements marked on each piece, and it is used to measure the gap or clearance between two components.

Thus, the most accurate statement regarding this scenario is d) Neither technician is correct.