NIMS CORE CNC MILLING SKILLS.
EXAM QUESTIONS AND ANSWERS 100%
PASS.
1-2-3 block - ANS A precise metal block with dimensions measuring 25.4 mm, 50.8 mm, and
76.2 mm long, respectively. A ___ ___ can be used to touch off a tool during calculation of tool
length offset.
axes - ANS An imaginary line that passes through the center of an object. ___ are used to
measure the distances of objects in the Cartesian coordinate system.
Cartesian coordinate system - ANS A positioning system that uses three perpendicular linear
axes to locate positions in three-dimensional space. The ___ ___ ___'s axes are the X axis, Y axis,
and Z axis.
CNC - ANS Computer numerical control. A sophisticated machining device that uses a
computer to carry out machining operations. ___ machine tools are much more sophisticated
than their manual counterparts.
computer numerical control - ANS CNC. A sophisticated machining device that uses a
computer to carry out machining operations. ___ ___ ___ machine tools are much more
sophisticated than their manual counterparts.
contour - ANS A curved surface or dimension that is cut into a workpiece. Contours can be
affected by the dimensions of the cutting tool if CRC is not used.
2026 STUDY MATERIAL @COPYRIGHT RESERVED 1
, CRC - ANS Cutter radius compensation. An offset that accounts for variations in tool diameter.
CRC is only necessary for tools that continuously cut along a horizontal plane.
cutter radius compensation - ANS CRC. An offset that accounts for variations in tool diameter.
Cutter radius compensation is only necessary for tools that continuously cut along a horizontal
plane.
diameters - ANS The distance from one edge of a circle to the opposite edge across its widest
point. Tool diameters must be accounted for with cutter radius compensation.
drills - ANS A multi-point cutting tool used to make round holes. Drills are usually made from
high-speed steel and cemented carbides.
edge finder - ANS A device used to locate the exact position of a part edge along the X axis or
Y axis. Edge finders determine workshift offsets.
end mills - ANS A milling cutter that cuts with its bottom and side edges. End mills can be
used to machine grooves, slots, circular slots, and pockets, among other features.
fixture - ANS A customized device that is used to position and hold a workpiece in place.
Fixtures are normally used to machine flat surfaces parallel to the table on a CNC mill.
flange - ANS A ring or collar surrounding the toolholder. The flange allows the tool to be
grasped by the toolchanger.
G codes - ANS A CNC programming code that determines the type of operation the machine
performs. G codes are one of a variety of CNC programming codes.
gage line - ANS An imaginary line marking the toolholder along the bottom edge of the
machine spindle. The gage line on the toolholder taper matches up with the machine tool
spindle when fitted together.
2026 STUDY MATERIAL @COPYRIGHT RESERVED 2
EXAM QUESTIONS AND ANSWERS 100%
PASS.
1-2-3 block - ANS A precise metal block with dimensions measuring 25.4 mm, 50.8 mm, and
76.2 mm long, respectively. A ___ ___ can be used to touch off a tool during calculation of tool
length offset.
axes - ANS An imaginary line that passes through the center of an object. ___ are used to
measure the distances of objects in the Cartesian coordinate system.
Cartesian coordinate system - ANS A positioning system that uses three perpendicular linear
axes to locate positions in three-dimensional space. The ___ ___ ___'s axes are the X axis, Y axis,
and Z axis.
CNC - ANS Computer numerical control. A sophisticated machining device that uses a
computer to carry out machining operations. ___ machine tools are much more sophisticated
than their manual counterparts.
computer numerical control - ANS CNC. A sophisticated machining device that uses a
computer to carry out machining operations. ___ ___ ___ machine tools are much more
sophisticated than their manual counterparts.
contour - ANS A curved surface or dimension that is cut into a workpiece. Contours can be
affected by the dimensions of the cutting tool if CRC is not used.
2026 STUDY MATERIAL @COPYRIGHT RESERVED 1
, CRC - ANS Cutter radius compensation. An offset that accounts for variations in tool diameter.
CRC is only necessary for tools that continuously cut along a horizontal plane.
cutter radius compensation - ANS CRC. An offset that accounts for variations in tool diameter.
Cutter radius compensation is only necessary for tools that continuously cut along a horizontal
plane.
diameters - ANS The distance from one edge of a circle to the opposite edge across its widest
point. Tool diameters must be accounted for with cutter radius compensation.
drills - ANS A multi-point cutting tool used to make round holes. Drills are usually made from
high-speed steel and cemented carbides.
edge finder - ANS A device used to locate the exact position of a part edge along the X axis or
Y axis. Edge finders determine workshift offsets.
end mills - ANS A milling cutter that cuts with its bottom and side edges. End mills can be
used to machine grooves, slots, circular slots, and pockets, among other features.
fixture - ANS A customized device that is used to position and hold a workpiece in place.
Fixtures are normally used to machine flat surfaces parallel to the table on a CNC mill.
flange - ANS A ring or collar surrounding the toolholder. The flange allows the tool to be
grasped by the toolchanger.
G codes - ANS A CNC programming code that determines the type of operation the machine
performs. G codes are one of a variety of CNC programming codes.
gage line - ANS An imaginary line marking the toolholder along the bottom edge of the
machine spindle. The gage line on the toolholder taper matches up with the machine tool
spindle when fitted together.
2026 STUDY MATERIAL @COPYRIGHT RESERVED 2
