Red Seal Tool and Die Maker Practice Exam

What does CNC stand for in the context of machining?

1. Computer Network Control

2. Computer Numerical Control

3. Custom Numeric Calculation

4. Computerized Navigation Command

The correct answer is: Computer Numerical Control

CNC stands for Computer Numerical Control, which refers to a method of automating machine tools through the use of computer software, allowing precise control of the machining processes. This technology helps in executing complex designs with high accuracy and repeatability, making it a vital aspect of modern manufacturing. By programming specific commands into the CNC machine, operators can direct the tool paths and movements to shape materials into the desired form. It supports a range of machining operations, including milling, turning, and drilling, significantly enhancing productivity and efficiency in manufacturing environments. The other options do not accurately reflect the terminology used in the machining industry. For instance, while "Computer Network Control" or "Custom Numeric Calculation" might suggest some form of computerized operations, they do not specifically relate to the controlled machine tool process that CNC represents. Similarly, "Computerized Navigation Command" is unrelated to machining practices and does not reflect the essence of controlling numerical data for tool operations.