Jess
Which machine component provides bearings and support for the spindle?
workholding device
tailstock
headstock
turret
headstock
Which jaw type can you use to increase holding power and minimize the potential for deforming the workpiece when clamping pressure is applied?
step jaws
pie jaws
hard jaws
soft jaws
pie jaws
Which mode switch position lets you modify CNC programs?
MDI
auto
handle
edit
edit
The term sum is the result of:
addition
subtraction
multiplication
division
addition
The term difference is the result of:
subtraction
addition
multiplication
division
subtraction
Which machine component holds cutting tools?
workholding device
headstock
tailstock
turret
turret
At what position in the master jaw stroke should a three-jaw chuck engage the workpiece during clamping?
one quarter of the way into the stroke
at or slightly before the end of the stroke
at or slightly past the midway point
at the beginning of the stroke
at or slightly past the midway point
Which mode switch position lets you run CNC programs?
MDI
handle
edit
auto
auto
The term product is the result of:
division
multiplication
addition
subtraction
multiplication
The term quotient is the result of:
division
addition
multiplication
subtraction
division
Which machine component supports the right end of a workpiece and allows shaft work to be done?
headstock
tailstock
turret
workholding device
tailstock
Say that a three jaw chuck has a 0.5" master jaw stroke length. If gripping must be done on a 3.5" external workpiece diameter, at what diameter must the workpiece gripping surface of each jaw be when the jaw is mounted in the master jaws? Note: The jaws are in the outward position when each jaw is mounted.
4.5"
4.0"
3.0"
3.5"
4.0"
A finish boring bar is programmed to finish bore a hole to 2.5" in diameter. The target value for the hole diameter is 2.5". Yet after machining the very first workpiece, and possibly due to tool pressure, you measure the hole and find it to be 2.4984". What must you do to the cutting tool's wear or geometry offset?
reduce the X axis register by 0.0016"
increase the Z axis register by 0.0016"
reduce the Z axis register by 0.0016"
increase the X axis register by 0.0016"
increase the X axis register by 0.0016"
How many 6" long pieces can be cut from 10 bars if each bar is 240" long? (disregard the losses from saw cuts)
60
40
400
420
400
A millwright is paid an overtime rate for every hour that exceeds 40 hours per week. What is the total number of overtime hours that is paid after working weeks of 47 hours, 52 hours, 60 hours, and 59 hours?
218
99
58
159
58
Which control panel function lets you take control of motion rate during the execution of a CNC program?
dry run
optional stop
single block
cycle start
dry run
The first switch you must set when performing any procedure on a CNC turning center is the:
feed rate override switch
mode switch
single block switch
dry run switch
mode switch
If you have made sizing adjustments during a cutting tool's life, what must you do to its wear offset value when it gets dull and you replace/index its insert?
increase it by 0.010"
set it back to its initial setting
decrease it by 0.010"
set it to the geometry offset value
set it back to its initial setting
An assembled gearbox requires parts weighing 12 kg, 7 kg, 18 kg, 21 kg, and 120 kg. What is the total weight of the parts?
170 kg
178 kg
167 kg
180 kg
178kg
What is the total weight of 18 parts if each part weighs 26 lbs.?
468 lbs.
446 lbs.
482 lbs.
420 lbs.
468 lbs.
Which control panel function lets you step through the program one command at a time?
dry run
optional stop
single block
cycle start
single block
Which mode switch position lets you rough position machine axes?
jog
MDI
edit
auto
jog
If you find that the feed rate for a given cutting tool must be overridden when running the first workpiece, what should you do?
Be sure to closely monitor every cycle and reset the feed rate override switch every time the tool begins machining.
Decrease the spindle override switch to compensate.
Increase the spindle override switch to compensate.
Change the feed rate for the cutting tool in the program so that the feed rate override switch can be kept at 100% for the entire cycle.
Change the feed rate for the cutting tool in the program so that the feed rate override switch can be kept at 100% for the entire cycle.
The total distance from city A to city B is 1242 km. If the traveller wishes to travel the same distance on each of 6 days to get from city A to city B, how far would he need to travel each day?
207 km
211 km
213 km
203 km
207 km
How many 5-gallon pails full of used oil could be emptied into a 45-gallon drum?
6
7
8
9
9