CNC Milling Quiz

What does CNC stand for?

• Controlled Numerical Coding

• Computer Numerical Control

• Computational Numerical Coding

• Control Number Coding

In a CNC milling machine, what is the primary function of the spindle?

• To hold the cutting tool

• To move the workpiece

• To control coolant flow

• To store programs

What type of coordinate system is used in CNC milling?

• Spherical

• Cartesian

• Polar

• Cylindrical

G-code is primarily used for:

• Programming CNC machines

• Designing CAD models

• Material inspection

• Machine maintenance

What does the G-code G00 represent?

• Rapid positioning

• Linear interpolation

• Circular interpolation

• Tool change

What is the purpose of the G-code G02?

• Linear interpolation

• Counter-clockwise circular interpolation

• Clockwise circular interpolation

• Program end

Which code is used to set the tool length offset?

• G41

• G43

• G54

• G17

M03 is used to:

• Start the spindle in clockwise direction

• Stop the spindle

• Turn on coolant

• Reverse spindle direction

Which of the following is a typical tool material in CNC milling?

• Plastic

• HSS (High-Speed Steel)

• Wood

• Aluminum

What is the function of the G-code G90?

• Incremental programming

• Absolute programming

• Spindle stop

• Coolant on