Which jog key is responsible for causing the chip auger to move in the opposite direction?

• A. CHIP STOP
• B. CHIP FWD
• C. CHIP REV
• D. CLNT DOWN

Answer: (C)

The jog key that is responsible for causing the chip auger to move in the opposite direction is the one that specifically indicates a reverse motion. In this case, the key labeled "CHIP REV" is designed to engage the auger in a reverse direction, allowing for the removal or repositioning of chips that have been collected. The use of "REV" clearly indicates a reversal, thus effectively instructing the machine to operate in the opposite direction from its standard movement. This function is essential for maintaining operational efficiency and ensuring that chips can be cleared from the workspace effectively.

In contrast, the other options either initiate forward movement or serve different purposes entirely, such as stopping the chip movement or managing coolant levels, thus making them unsuitable for reversing the chip auger's motion.