IME 146 QUESTIONS AND ANSWERS
All CNC Machines Contain three different components select them: - Answer -
Processing Equipment, Program of Instructions, Machine Control Unit
What are the three main ways G & M code can be created for a CNC machine? -
Answer -Manual Programming, Conversational Programming, CAD/CAM Programming
CNC milling G & M code is based off the _________ Coordinate System. - Answer -
Cartesian
Our Haas CNC machines have a [ ] loop positioning system. The system gets feedback
from the [ ] encoder located inside the servo motors on the machine. - Answer -Closed,
Optical
The [ ] screw turns rotary motion from the servo motor into linear axis motion and
eliminates [ ] in the CNC table drive system. - Answer -Ball, Backlash
TRUE OR FALSE: Fixture offset or work-coordinate systems (WCS) are the same as
the world x, y, & z zero position location in the CNC mill machine. - Answer -False
The most common WCS G code is: - Answer -G54
TRUE OR FALSE: The tool length offset tells the CNC mill the length the tool is sticking
out of thespindle. This allows the machine to know where the bottom of the tool is
locatedin relation to the Work Coordinate System. - Answer -True
A [ ] code is a preparatory function, it preps the CNC machine for some sort of motion -
Answer -G
Fixture Offset - Answer -G54
Tool Length Offset - Answer -G43
Rapid Motion - Answer -G00
Absolute Positioning - Answer -G90
Clockwise circular interpolation, it cuts in a clockwise arc - Answer -G02
Linear Interpolation it Cuts in a straight line - Answer -G01
Counterclockwise circular interpolation, it cuts in a counterclockwise arc - Answer -G03
, An __ code is a miscellaneous function that causes an action to occur within the G & M
code. - Answer -M
Tool Change - Answer -M06
Turn on Spindle Clockwise - Answer -M03
Turn On Coolant - Answer -M08
End Of Program - Answer -M30
Turn Off Coolant - Answer -M09
The ____ _______ generates the machine specific G & M code for the CNCmachine in
the CAD/CAM system. - Answer -Post Processor
The term [ ] is used to describe the angle on vertical walls of a mold to aid in the part
releasing correctly from the mold. - Answer -Draft
What type of polymers are utilized in the injection molding manufacturing process? -
Answer -Thermoplastic
TRUE OR FALSE: Sharp internal and sharp external corners are the preferred design of
both injection molds and injection molded parts. This is because the mold is easier to
manufacture and the molded parts are significantly stronger. - Answer -False
What is the most common cause of a mold cavity to not have enough material injected
into it? Choose all that apply - Answer -The injection molding machine has the injection
pressure set too low
In an injection mold, [ ] are used to distribute material from the sprue to the opening into
the mold cavities. - Answer -Runners
What are the two primary causes of "flash"? - Answer -Clamp Force Too Low, Injection
Pressure Too High
The [ ] connects the mold to the injection molding machine's nozzle and is the sealing
interface between the mold and machine. - Answer -
Does laser cutting leave a heat affected zone in the workpiece? - Answer -Yes
What two techniques are used to apply the acid resist to a workpiece in chemical
milling? - Answer -Spray/Dip Photoresist using UV Light and Photo Tool
TRUE OR FALSE: 3-axis toolpaths move 2 axes simultaneously in one line of CNC
code.They drop down to depth and then move in the X & Y axes. 2½-axis toolpaths
All CNC Machines Contain three different components select them: - Answer -
Processing Equipment, Program of Instructions, Machine Control Unit
What are the three main ways G & M code can be created for a CNC machine? -
Answer -Manual Programming, Conversational Programming, CAD/CAM Programming
CNC milling G & M code is based off the _________ Coordinate System. - Answer -
Cartesian
Our Haas CNC machines have a [ ] loop positioning system. The system gets feedback
from the [ ] encoder located inside the servo motors on the machine. - Answer -Closed,
Optical
The [ ] screw turns rotary motion from the servo motor into linear axis motion and
eliminates [ ] in the CNC table drive system. - Answer -Ball, Backlash
TRUE OR FALSE: Fixture offset or work-coordinate systems (WCS) are the same as
the world x, y, & z zero position location in the CNC mill machine. - Answer -False
The most common WCS G code is: - Answer -G54
TRUE OR FALSE: The tool length offset tells the CNC mill the length the tool is sticking
out of thespindle. This allows the machine to know where the bottom of the tool is
locatedin relation to the Work Coordinate System. - Answer -True
A [ ] code is a preparatory function, it preps the CNC machine for some sort of motion -
Answer -G
Fixture Offset - Answer -G54
Tool Length Offset - Answer -G43
Rapid Motion - Answer -G00
Absolute Positioning - Answer -G90
Clockwise circular interpolation, it cuts in a clockwise arc - Answer -G02
Linear Interpolation it Cuts in a straight line - Answer -G01
Counterclockwise circular interpolation, it cuts in a counterclockwise arc - Answer -G03
, An __ code is a miscellaneous function that causes an action to occur within the G & M
code. - Answer -M
Tool Change - Answer -M06
Turn on Spindle Clockwise - Answer -M03
Turn On Coolant - Answer -M08
End Of Program - Answer -M30
Turn Off Coolant - Answer -M09
The ____ _______ generates the machine specific G & M code for the CNCmachine in
the CAD/CAM system. - Answer -Post Processor
The term [ ] is used to describe the angle on vertical walls of a mold to aid in the part
releasing correctly from the mold. - Answer -Draft
What type of polymers are utilized in the injection molding manufacturing process? -
Answer -Thermoplastic
TRUE OR FALSE: Sharp internal and sharp external corners are the preferred design of
both injection molds and injection molded parts. This is because the mold is easier to
manufacture and the molded parts are significantly stronger. - Answer -False
What is the most common cause of a mold cavity to not have enough material injected
into it? Choose all that apply - Answer -The injection molding machine has the injection
pressure set too low
In an injection mold, [ ] are used to distribute material from the sprue to the opening into
the mold cavities. - Answer -Runners
What are the two primary causes of "flash"? - Answer -Clamp Force Too Low, Injection
Pressure Too High
The [ ] connects the mold to the injection molding machine's nozzle and is the sealing
interface between the mold and machine. - Answer -
Does laser cutting leave a heat affected zone in the workpiece? - Answer -Yes
What two techniques are used to apply the acid resist to a workpiece in chemical
milling? - Answer -Spray/Dip Photoresist using UV Light and Photo Tool
TRUE OR FALSE: 3-axis toolpaths move 2 axes simultaneously in one line of CNC
code.They drop down to depth and then move in the X & Y axes. 2½-axis toolpaths
