CNC Final Review Test Questions &
Answers 2024/2025
Which drawing command would be the most efficient means to place a regularly spaced pattern of 5
holes around a center point? - ANSWERSCircular Pattern.
What is the main advantage of rapid prototyping? - ANSWERSRapid prototyping allows models to be
quickly and accurately made from a CAD or solid model drawing.
Which of the following rapid prototyping process uses a liquid polymer in the process of creating a
prototype? - ANSWERSStereolithography.
Most rapid prototyping processes are ______________ processes. - ANSWERSadditive.
What is the name of the rapid prototyping process that deposits molten plastic in a desired pattern and
then allows it to harden by cooling? - ANSWERSFused deposition modeling.
When two line segments of a sketch fall on the same line, they are said to be _________________. -
ANSWERScollinear
If the tool height offsets are the same for each tool, what will happen to a pocket being milled in a block
of material if a ¼" end mill is called out in the CAM software and a ½" diameter end mill is used to
machine the pocket? - ANSWERSThe pocket will be larger than desired.
Which of the following codes is most appropriately used with an M06 in the same line or block of code? -
ANSWERST10.
When "homing" a robot or a CNC machine, which feedback device is used to indicate the machine has
reached the extent of its travel on an axis? - ANSWERSLimit switch.
, Which sequence of operations is most correct for the design and creation of precision parts? -
ANSWERSConcept sketch, CAD Geometry, CAM analysis, G&M Code Post, Program Verification, Program
Execution.
Which of the following devices uses signals from a CNC controller to precisely control its rate of rotation
and direction of rotation? - ANSWERSStepper motor.
Which of the following is an advantage of using CAM software over manually creating the G&M code to
machine a part? - ANSWERSCam software will always create a much more efficient tool path than a
person can.
The first industrial robots were used primarily to improve the quality of the products in which industry? -
ANSWERSAutomotive.
The first industrial robot was developed in the early 1960's, and was called _________________. -
ANSWERSUnimate.
The maximum extent or reach of a robot in all direction is defined as its _________________. -
ANSWERSwork envelope.
A robot's ability to position its end effector at a specific point in space is defined as
________________________. - ANSWERSaccuracy.
Which type of robot programming moves a robot from position to position without regard for the
intermediate points in between? - ANSWERSPoint to Point.
Which of the following control techniques provides the greatest amount of positional accuracy? -
ANSWERSClosed loop with electric power.
What is an advantage of having more degrees of freedom in a robot arm? - ANSWERSThe end effector
has more ways to reach a point.
Answers 2024/2025
Which drawing command would be the most efficient means to place a regularly spaced pattern of 5
holes around a center point? - ANSWERSCircular Pattern.
What is the main advantage of rapid prototyping? - ANSWERSRapid prototyping allows models to be
quickly and accurately made from a CAD or solid model drawing.
Which of the following rapid prototyping process uses a liquid polymer in the process of creating a
prototype? - ANSWERSStereolithography.
Most rapid prototyping processes are ______________ processes. - ANSWERSadditive.
What is the name of the rapid prototyping process that deposits molten plastic in a desired pattern and
then allows it to harden by cooling? - ANSWERSFused deposition modeling.
When two line segments of a sketch fall on the same line, they are said to be _________________. -
ANSWERScollinear
If the tool height offsets are the same for each tool, what will happen to a pocket being milled in a block
of material if a ¼" end mill is called out in the CAM software and a ½" diameter end mill is used to
machine the pocket? - ANSWERSThe pocket will be larger than desired.
Which of the following codes is most appropriately used with an M06 in the same line or block of code? -
ANSWERST10.
When "homing" a robot or a CNC machine, which feedback device is used to indicate the machine has
reached the extent of its travel on an axis? - ANSWERSLimit switch.
, Which sequence of operations is most correct for the design and creation of precision parts? -
ANSWERSConcept sketch, CAD Geometry, CAM analysis, G&M Code Post, Program Verification, Program
Execution.
Which of the following devices uses signals from a CNC controller to precisely control its rate of rotation
and direction of rotation? - ANSWERSStepper motor.
Which of the following is an advantage of using CAM software over manually creating the G&M code to
machine a part? - ANSWERSCam software will always create a much more efficient tool path than a
person can.
The first industrial robots were used primarily to improve the quality of the products in which industry? -
ANSWERSAutomotive.
The first industrial robot was developed in the early 1960's, and was called _________________. -
ANSWERSUnimate.
The maximum extent or reach of a robot in all direction is defined as its _________________. -
ANSWERSwork envelope.
A robot's ability to position its end effector at a specific point in space is defined as
________________________. - ANSWERSaccuracy.
Which type of robot programming moves a robot from position to position without regard for the
intermediate points in between? - ANSWERSPoint to Point.
Which of the following control techniques provides the greatest amount of positional accuracy? -
ANSWERSClosed loop with electric power.
What is an advantage of having more degrees of freedom in a robot arm? - ANSWERSThe end effector
has more ways to reach a point.
