NIMS CNC Operator Test Study Guide | Questions and
verified Answers | A+ Graded | 2026 Updated | 100%
correct
+X - ANSWER- A jog key that moves the spindle along the X-axis in the positive direction.
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 - ANSWER- An override key on the Haas control that limits rapid traverse to 25%
of maximum.
50% RAPID - ANSWER- An override key on the Haas control that limits rapid traverse to 50%
of maximum.
100% RAPID - ANSWER- An override key on the Haas control that allows the machine spindle
to move at its maximum rate of travel.
Alarm 176 - ANSWER- An alarm code on the Haas control that indicates the machine is
experiencing an overvoltage condition. Alarm 176 initiates auto-shutdown after 4.5 minutes.
Alarm 177 - ANSWER- An alarm code on the Haas control that indicates the machine is
experiencing an overheating condition. Alarm 177 initiates auto-shutdown after 4.5 minutes.
ALARM/MESGS - ANSWER- The display key on the Haas control that shows the current alarms
when pressed once and messages when pressed twice.
alpha keys - ANSWER- The area of the control keypad that allows an operator to enter letters
and special characters into the control.
AUTO ALL AXES - ANSWER- In zero return mode, the key that returns and initializes all axes to
machine zero.
Auto Power Off Timer - ANSWER- Setting 1. A setting that indicates how many minutes of idle
time must lapse before the machine is automatically turned off.
AUX CLNT - ANSWER- A jog key that turns on the Through Spindle Coolant system when in
MDI mode. Pressing this key again shuts off the system.
verified Answers | A+ Graded | 2026 Updated | 100%
correct
+X - ANSWER- A jog key that moves the spindle along the X-axis in the positive direction.
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 - ANSWER- An override key on the Haas control that limits rapid traverse to 25%
of maximum.
50% RAPID - ANSWER- An override key on the Haas control that limits rapid traverse to 50%
of maximum.
100% RAPID - ANSWER- An override key on the Haas control that allows the machine spindle
to move at its maximum rate of travel.
Alarm 176 - ANSWER- An alarm code on the Haas control that indicates the machine is
experiencing an overvoltage condition. Alarm 176 initiates auto-shutdown after 4.5 minutes.
Alarm 177 - ANSWER- An alarm code on the Haas control that indicates the machine is
experiencing an overheating condition. Alarm 177 initiates auto-shutdown after 4.5 minutes.
ALARM/MESGS - ANSWER- The display key on the Haas control that shows the current alarms
when pressed once and messages when pressed twice.
alpha keys - ANSWER- The area of the control keypad that allows an operator to enter letters
and special characters into the control.
AUTO ALL AXES - ANSWER- In zero return mode, the key that returns and initializes all axes to
machine zero.
Auto Power Off Timer - ANSWER- Setting 1. A setting that indicates how many minutes of idle
time must lapse before the machine is automatically turned off.
AUX CLNT - ANSWER- A jog key that turns on the Through Spindle Coolant system when in
MDI mode. Pressing this key again shuts off the system.
