HAAS MILL CERTIFICATION LATEST 2026 ACTUAL FINAL
EXAM QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔When it is time turn on the machine, the Operator will press the Power On button.
True or False - ✔✔True
✔✔When the machine is powered up, it takes a moment to run through a series of
diagnostics. Once the diagnostics are complete, the normal control screen will appear,
and the red E-Stop light on top of the pendant will illuminate. This is normal, and nothing
to be concerned about. True or False - ✔✔True
✔✔Once the Operator has completed the required tasks shown on the control screen,
the machine will return to its Home Position when you press: - ✔✔Power Up
✔✔The term Home Position on a CNC machine means: - ✔✔A fixed position for all
three axes, with the table moved to the front and left side of the machine space
✔✔When you start the workday, the machine must be clean and clear of chips on the
waycovers and table, BEFORE you start you start running parts on the machine. True
or False - ✔✔True
✔✔It is important to check the coolant tank fluid level once a week. True or False -
✔✔False
✔✔When the machine is running, there are three ways to stop the machine: press Feed
Hold, press the Reset button, or hit Emergency Stop. True or False - ✔✔True
✔✔While the machine is running, if you detect a problem or a potential crash situation,
you should press: - ✔✔Emergency Stop
✔✔Some machine shops will require their Operators to press E-Stops when the
Operator leaves his/her machine for extended periods of time: True or False - ✔✔True
✔✔When you leave your station at then end of your shift or for the weekend, it is
important that you clean your workspace, put away your tools, and clean up any spills
that may have occurred. True or False - ✔✔True
✔✔When operating a CNC machine throughout the workday, there is no need to clean
out the chips several times during the day. True or False - ✔✔False
✔✔Leaving large piles of chips in a machine, particularly steel or iron chips, will lead to
rust inside the CNC machine. True or False - ✔✔True
,✔✔When clearing the chips from the machine, it is first important to clear the chips from
the table and the waycovers using the washdown hose. True or False - ✔✔True
✔✔Once you have cleared out the majority of chips from the enclosure, you should
push the Emergency Stop button, and then use the airgun to blow puddles of coolant off
the table, vise, and workholding fixtures. True or False - ✔✔True
✔✔When using the airgun, never point it directly into the nose of the spindle. This may
cause contaminants to get lodged inside the spindle and the spindle bearings. True or
False - ✔✔True
✔✔After you have cleared the chips out of the machine enclosure, it is a good idea to
check the coolant level meter on the control screen, as well as check the coolant level
at the coolant tank. True or False - ✔✔True
✔✔When refilling the coolant tank, it is important that you use the proper mixture ratio of
coolant concentrate to water. True or False - ✔✔True
✔✔For extended periods of shut down, such as a weekend, it is important to: -
✔✔Spray down the machine waycovers, table, fixturing, and tooling with a rust
preventive
✔✔Before heading home for the night after a workday, the Operator needs to prep the
machine for the next day's work. True or False - ✔✔True
✔✔It is important to spend time in front of an actual CNC machine to become familiar
with what they do and how they operate. A good place to do this is: - ✔✔Your local
Haas Factory Outlet
✔✔What is the most common workholding device? - ✔✔A mill vise
✔✔Every workpiece in a job run needs to be located in the same position every time
you load the vise. - ✔✔True
✔✔The bottom of the vise locates the workpiece for which axis? - ✔✔Z axis
✔✔Vise jaws come in a number of different configurations. There is a straight, hard Jaw
for clamping a part that sits all the way down in the vise. We call these hard jaws
because: - ✔✔They are made from hardened steel, and are more durable
✔✔What are the two main components that all machine fixtures have in common? -
✔✔They all have a method for locating the part that is repeatable, and they all have a
way to clamp the part tightly.
, ✔✔The best position for the Operator when blowing off the part and the workholding
fixture is: - ✔✔Standing behind one of the doors while it's in the closed position, and
using only one arm and the airgun in the machine enclosure to blow off the fixture and
workpiece
✔✔There are 3 steps to keep in mind when blowing off the workpiece and fixture. What
are the correct 3 steps for this process? - ✔✔Open the doors of the machine. First, blow
off the part in the fixture; second, remove the workpiece and blow it off; and third, open
the fixture or workholding and blow it off, to make sure there are no chips or debris on
any locating surface.
✔✔Cleaning the fixture or workholding device is critical. By not properly cleaning the
workholding, you run the risk of: - ✔✔Putting a dent or a ding in the surface of your next
part(s), or possibly causing the workpiece to be out of position in the vise
✔✔When loading a new part into the workholding vise or fixture, what are the correct
steps? - ✔✔Gently place the workpiece in the vise, first locating the piece against the Z-
axis locating surface, then pushing the workpiece against the X and Y locating surfaces.
While holding the part in place, firmly tighten the vise or fixture clamp. Pay special
attention to ensure the workpiece has not moved away from any of the locating
surfaces.
✔✔Once you have the new workpiece loaded into the vise, and have verified it is in the
correct position, the next step is: - ✔✔While keeping an eye on the part in the vise, hit
the Cycle Start button. Keep your hands near the Feed Hold and E-Stop buttons in case
there is a problem. Watch and listen to the cutter engage with the part. If all seems OK,
you can take your hands off the keypad panel.
✔✔Watching the Haas Certification videos is a good first step to learning the basics
about CNC machines. However, there is nothing better than hands-on experience. Be
sure to contact _____________ to arrange time in front of a Haas CNC machine. -
✔✔Your local Haas Factory Outlet
✔✔The first number you will see in the program that is running in the control is: -
✔✔The program number, or O number. This can have 5 numerals following the letter O.
✔✔The second line of text and code in the program is commonly: - ✔✔The drawing
number and revision of the programmed part
✔✔Often, the list of cutting tools needed for this particular program will be listed. True or
False - ✔✔True
EXAM QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔When it is time turn on the machine, the Operator will press the Power On button.
True or False - ✔✔True
✔✔When the machine is powered up, it takes a moment to run through a series of
diagnostics. Once the diagnostics are complete, the normal control screen will appear,
and the red E-Stop light on top of the pendant will illuminate. This is normal, and nothing
to be concerned about. True or False - ✔✔True
✔✔Once the Operator has completed the required tasks shown on the control screen,
the machine will return to its Home Position when you press: - ✔✔Power Up
✔✔The term Home Position on a CNC machine means: - ✔✔A fixed position for all
three axes, with the table moved to the front and left side of the machine space
✔✔When you start the workday, the machine must be clean and clear of chips on the
waycovers and table, BEFORE you start you start running parts on the machine. True
or False - ✔✔True
✔✔It is important to check the coolant tank fluid level once a week. True or False -
✔✔False
✔✔When the machine is running, there are three ways to stop the machine: press Feed
Hold, press the Reset button, or hit Emergency Stop. True or False - ✔✔True
✔✔While the machine is running, if you detect a problem or a potential crash situation,
you should press: - ✔✔Emergency Stop
✔✔Some machine shops will require their Operators to press E-Stops when the
Operator leaves his/her machine for extended periods of time: True or False - ✔✔True
✔✔When you leave your station at then end of your shift or for the weekend, it is
important that you clean your workspace, put away your tools, and clean up any spills
that may have occurred. True or False - ✔✔True
✔✔When operating a CNC machine throughout the workday, there is no need to clean
out the chips several times during the day. True or False - ✔✔False
✔✔Leaving large piles of chips in a machine, particularly steel or iron chips, will lead to
rust inside the CNC machine. True or False - ✔✔True
,✔✔When clearing the chips from the machine, it is first important to clear the chips from
the table and the waycovers using the washdown hose. True or False - ✔✔True
✔✔Once you have cleared out the majority of chips from the enclosure, you should
push the Emergency Stop button, and then use the airgun to blow puddles of coolant off
the table, vise, and workholding fixtures. True or False - ✔✔True
✔✔When using the airgun, never point it directly into the nose of the spindle. This may
cause contaminants to get lodged inside the spindle and the spindle bearings. True or
False - ✔✔True
✔✔After you have cleared the chips out of the machine enclosure, it is a good idea to
check the coolant level meter on the control screen, as well as check the coolant level
at the coolant tank. True or False - ✔✔True
✔✔When refilling the coolant tank, it is important that you use the proper mixture ratio of
coolant concentrate to water. True or False - ✔✔True
✔✔For extended periods of shut down, such as a weekend, it is important to: -
✔✔Spray down the machine waycovers, table, fixturing, and tooling with a rust
preventive
✔✔Before heading home for the night after a workday, the Operator needs to prep the
machine for the next day's work. True or False - ✔✔True
✔✔It is important to spend time in front of an actual CNC machine to become familiar
with what they do and how they operate. A good place to do this is: - ✔✔Your local
Haas Factory Outlet
✔✔What is the most common workholding device? - ✔✔A mill vise
✔✔Every workpiece in a job run needs to be located in the same position every time
you load the vise. - ✔✔True
✔✔The bottom of the vise locates the workpiece for which axis? - ✔✔Z axis
✔✔Vise jaws come in a number of different configurations. There is a straight, hard Jaw
for clamping a part that sits all the way down in the vise. We call these hard jaws
because: - ✔✔They are made from hardened steel, and are more durable
✔✔What are the two main components that all machine fixtures have in common? -
✔✔They all have a method for locating the part that is repeatable, and they all have a
way to clamp the part tightly.
, ✔✔The best position for the Operator when blowing off the part and the workholding
fixture is: - ✔✔Standing behind one of the doors while it's in the closed position, and
using only one arm and the airgun in the machine enclosure to blow off the fixture and
workpiece
✔✔There are 3 steps to keep in mind when blowing off the workpiece and fixture. What
are the correct 3 steps for this process? - ✔✔Open the doors of the machine. First, blow
off the part in the fixture; second, remove the workpiece and blow it off; and third, open
the fixture or workholding and blow it off, to make sure there are no chips or debris on
any locating surface.
✔✔Cleaning the fixture or workholding device is critical. By not properly cleaning the
workholding, you run the risk of: - ✔✔Putting a dent or a ding in the surface of your next
part(s), or possibly causing the workpiece to be out of position in the vise
✔✔When loading a new part into the workholding vise or fixture, what are the correct
steps? - ✔✔Gently place the workpiece in the vise, first locating the piece against the Z-
axis locating surface, then pushing the workpiece against the X and Y locating surfaces.
While holding the part in place, firmly tighten the vise or fixture clamp. Pay special
attention to ensure the workpiece has not moved away from any of the locating
surfaces.
✔✔Once you have the new workpiece loaded into the vise, and have verified it is in the
correct position, the next step is: - ✔✔While keeping an eye on the part in the vise, hit
the Cycle Start button. Keep your hands near the Feed Hold and E-Stop buttons in case
there is a problem. Watch and listen to the cutter engage with the part. If all seems OK,
you can take your hands off the keypad panel.
✔✔Watching the Haas Certification videos is a good first step to learning the basics
about CNC machines. However, there is nothing better than hands-on experience. Be
sure to contact _____________ to arrange time in front of a Haas CNC machine. -
✔✔Your local Haas Factory Outlet
✔✔The first number you will see in the program that is running in the control is: -
✔✔The program number, or O number. This can have 5 numerals following the letter O.
✔✔The second line of text and code in the program is commonly: - ✔✔The drawing
number and revision of the programmed part
✔✔Often, the list of cutting tools needed for this particular program will be listed. True or
False - ✔✔True
