Introduction to Numerical Control Systems
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Questions and Answers

What is the definition of numerical control (NC) according to the Electronic Industries Association (EIA)?

  • A system where actions are controlled by the direct insertion of numerical data and manual interpretation
  • A system where actions are controlled by the direct insertion of numerical data without any interpretation
  • A system where actions are controlled by the direct insertion of numerical data and must automatically interpret at least some portion of this data (correct)
  • A system where actions are controlled by the direct insertion of symbolic code without any interpretation

    • What type of instructions does Computer Numerical Control (CNC) use?

  • Instructions stored as a program in a cloud-based system
  • Instructions stored as a program in a micro-computer attached to the machine (correct)
  • Instructions stored as a program in a separate control unit
  • Instructions stored as a program in a mainframe computer

    • What type of operations are associated with CNC applications?

  • Machining 2D / 3D, Grinding, Boring, Sawing, 3D Printing
  • Machining 2D / 3D, Drilling, Shearing, Casting, Plasma Cutting
  • Machining 2.5D / 3D, Turning, Welding, Forming 3D, Laser Cutting
  • Machining 2.5D / 3D, Turning, Milling, Forming 2D, 3D Rapid Prototyping (correct)

    • What are G and M codes used for in CNC?

    <p>Number values and co-ordinates assigned to particular operations</p> Signup and view all the answers

    What is the function of the machine control unit in an operational NC system?

    <p>Reads the program of instructions and converts it to real movement of a machine tool</p> Signup and view all the answers

    What is the definition of Computer Numerical Control (CNC)?

    <p>A system where instructions are stored as a program in a micro-computer attached to the machine.</p> Signup and view all the answers

    What does the program of instruction in an operational NC system entail?

    <p>Numerical or symbolic code detailing step-by-step instructions for the machine tool.</p> Signup and view all the answers

    What are G and M codes used for in CNC?

    <p>Assigned to particular operations and used for controlling machine actions.</p> Signup and view all the answers

    What is the function of the machine control unit in an operational NC system?

    <p>Reads the program of instructions and converts it to real movement of a machine tool.</p> Signup and view all the answers

    What are some applications of Computer Numerical Control (CNC)?

    <p>Machining 2.5D / 3D Turning, Milling, Plasma and Laser Cutting, Rapid Prototyping</p> Signup and view all the answers

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