NIMS CNC Operator Practice Test 2025 – Complete Exam Prep Guide

The function of the jog key labeled as CHIP FWD is to start the chip auger, which is responsible for removing metal chips and debris generated during the machining process. This is crucial for maintaining a clean working environment and ensuring efficient operation of the CNC machine. By engaging the chip auger, the operator can facilitate proper chip management, which is essential for preventing buildup that could hinder machine performance or create safety hazards.

In contrast, stopping the auger, reversing its direction, or moving the coolant nozzle do not directly relate to the specific task of removing chips; instead, those actions serve different functions in the overall operation of the CNC machine. Thus, activating the jog key labeled CHIP FWD initiates the removal process, supporting both effective machining and equipment maintenance.