NIMS Milling Practice Test with Answers
What direction do you turn the manual pulse generator or move the axis to move a tool from
right to left on a cnc mill? ✔️✔️The X- direction
What mode switch position allows you to send the machine to its reference position?
✔️✔️Zero Return
+/- .005 represents a _______. ✔️✔️tolerance
While dry running a proven program, the machine goes into an alarm state and shows a message,
Overcutting will occur during Cutter Compensation. "What is most likely wrong" ✔️✔️You
need to change the tool dia. or radius offset value.
You need to tool change to Tool #11. How would you do it? ✔️✔️Use MDI mode to change
tools using commands similar to what a program would
Match the M30 code to its description. ✔️✔️program end / rewind
You must cut a part to 10.175 inches long and need to add a total of 1/8 of an inch for finish
machining. How long should you saw the block? ✔️✔️10.300"
, Using a standard high speed steel twist drill, you are to drill a hole .312" deep (not including the
drill point). If the drill point checks .098" long, how deep should the drill be programmed?
✔️✔️Z-.410
Why do you have to "home" the machine when you first power up? ✔️✔️so the machine can
find the X, Y, and Z axis reference points
You have a dimension that is supposed to be 1.105" +/- .0015". Which of these dimensions is out
of your tolerance zone? ✔️✔️1.1033
What button will restart the program after a program stop has been read? ✔️✔️cycle start
What mode switch position allows you to move the machine axes manually? ✔️✔️Jog
The upper size limit on a pocket is .787". You measure the diameter and it checks .7915". How
much oversize is the diameter? ✔️✔️.0045"
What is the code G28? ✔️✔️zero return
When should safety glasses be worn? ✔️✔️as you enter the machining environment
What direction do you turn the manual pulse generator or move the axis to move a tool from
right to left on a cnc mill? ✔️✔️The X- direction
What mode switch position allows you to send the machine to its reference position?
✔️✔️Zero Return
+/- .005 represents a _______. ✔️✔️tolerance
While dry running a proven program, the machine goes into an alarm state and shows a message,
Overcutting will occur during Cutter Compensation. "What is most likely wrong" ✔️✔️You
need to change the tool dia. or radius offset value.
You need to tool change to Tool #11. How would you do it? ✔️✔️Use MDI mode to change
tools using commands similar to what a program would
Match the M30 code to its description. ✔️✔️program end / rewind
You must cut a part to 10.175 inches long and need to add a total of 1/8 of an inch for finish
machining. How long should you saw the block? ✔️✔️10.300"
, Using a standard high speed steel twist drill, you are to drill a hole .312" deep (not including the
drill point). If the drill point checks .098" long, how deep should the drill be programmed?
✔️✔️Z-.410
Why do you have to "home" the machine when you first power up? ✔️✔️so the machine can
find the X, Y, and Z axis reference points
You have a dimension that is supposed to be 1.105" +/- .0015". Which of these dimensions is out
of your tolerance zone? ✔️✔️1.1033
What button will restart the program after a program stop has been read? ✔️✔️cycle start
What mode switch position allows you to move the machine axes manually? ✔️✔️Jog
The upper size limit on a pocket is .787". You measure the diameter and it checks .7915". How
much oversize is the diameter? ✔️✔️.0045"
What is the code G28? ✔️✔️zero return
When should safety glasses be worn? ✔️✔️as you enter the machining environment
