CNC MILL OPERATOR COMPREHENSIVE
EXAM STUDY GUIDE WITH COMPLETE
SOLUTIONS
●● minus (-)X
Answer: A jog key that moves the spindle along the X-axis in the
negative direction.
●● +Y
Answer: A jog key that moves the spindle along the Y-axis in the
positive direction.
●● minus (-)Y
Answer: A jog key that moves the spindle along the Y-axis in the
negative direction.
●● +Z
Answer: A jog key that moves the spindle along the Z-axis in the
positive direction.
●● minus (-)Z
Answer: A jog key that moves the spindle along the Z-axis in the
negative direction.
,●● +A
Answer: A jog key that rotates machine components around the A-axis in
a positive direction. Not all Haas mills are equipped with a fourth A-
axis.
●● minus (-)A
Answer: A jog key that rotates machine components around the A-axis in
a negative direction. Not all Haas mills are equipped with a fourth A-
axis.
●● +B
Answer: A jog key that rotates machine components around the B-axis in
a positive direction. Not all Haas mills are equipped with a fifth B-axis.
●● minus (-)B
Answer: A jog key that rotates machine components around the B-axis in
a negative direction. Not all Haas mills are equipped with a fifth B-axis.
●● +10 FEEDRATE
Answer: An override key on the Haas control that increases the current
feed rate in 10% increments.
●● minus (-)10 FEEDRATE
, Answer: An override key on the Haas control that decreases the current
feed rate in 10% increments.
●● 100% FEEDRATE
Answer: An override key on the Haas control that sets the feed rate back
to 100% of the programmed value.
●● +10 SPINDLE
Answer: An override key on the Haas control that increases the current
spindle speed in 10% increments.
●● minus (-)10 SPINDLE
Answer: An override key on the Haas control that decreases the current
spindle speed in 10% increments.
●● 100% SPINDLE
Answer: An override key on the Haas control that sets the spindle back
to 100% of the programmed value.
●● 5% RAPID
Answer: An override key on the Haas control that limits rapid traverse to
5% of maximum.
●● 25% RAPID
EXAM STUDY GUIDE WITH COMPLETE
SOLUTIONS
●● minus (-)X
Answer: A jog key that moves the spindle along the X-axis in the
negative direction.
●● +Y
Answer: A jog key that moves the spindle along the Y-axis in the
positive direction.
●● minus (-)Y
Answer: A jog key that moves the spindle along the Y-axis in the
negative direction.
●● +Z
Answer: A jog key that moves the spindle along the Z-axis in the
positive direction.
●● minus (-)Z
Answer: A jog key that moves the spindle along the Z-axis in the
negative direction.
,●● +A
Answer: A jog key that rotates machine components around the A-axis in
a positive direction. Not all Haas mills are equipped with a fourth A-
axis.
●● minus (-)A
Answer: A jog key that rotates machine components around the A-axis in
a negative direction. Not all Haas mills are equipped with a fourth A-
axis.
●● +B
Answer: A jog key that rotates machine components around the B-axis in
a positive direction. Not all Haas mills are equipped with a fifth B-axis.
●● minus (-)B
Answer: A jog key that rotates machine components around the B-axis in
a negative direction. Not all Haas mills are equipped with a fifth B-axis.
●● +10 FEEDRATE
Answer: An override key on the Haas control that increases the current
feed rate in 10% increments.
●● minus (-)10 FEEDRATE
, Answer: An override key on the Haas control that decreases the current
feed rate in 10% increments.
●● 100% FEEDRATE
Answer: An override key on the Haas control that sets the feed rate back
to 100% of the programmed value.
●● +10 SPINDLE
Answer: An override key on the Haas control that increases the current
spindle speed in 10% increments.
●● minus (-)10 SPINDLE
Answer: An override key on the Haas control that decreases the current
spindle speed in 10% increments.
●● 100% SPINDLE
Answer: An override key on the Haas control that sets the spindle back
to 100% of the programmed value.
●● 5% RAPID
Answer: An override key on the Haas control that limits rapid traverse to
5% of maximum.
●● 25% RAPID
