3D Printing Hardware Coursera Quiz Answers 2022 [💯% Correct Answer]

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About 3D Printing Hardware Course

This course will provide an in-depth exploration of desktop 3D printing hardware. It will examine the history of desktop 3D printing and demonstrate how 3D printers are made and how they work.

Course Apply Link – 3D Printing Hardware

3D Printing Hardware Quiz Answers

Week 01: 3D Printing Hardware Coursera Quiz Answers

Quiz 01: Orientation Quiz

Q1. This course includes ___ modules.

  • 3
  • 4
  • 5
  • 6

Q2. I am required to purchase a textbook for this course.

  • True
  • False

Q3. Which of the following activities is NOT required in each module?

  • Watch the lecture videos.
  • Pass the practice quizzes.
  • Complete the module quizzes.
  • Complete the peer reviewed assignments.

Q4. The following tool(s) will help me use the discussion forums:

  • Upvoting posts
  • Reporting inappropriate posts
  • Following a thread
  • All of the other options are correct.

Q5. If I have a problem in the course I should:

  • Email the instructor
  • Call the instructor
  • Drop the class
  • Report it to the Learner Help Center (if the problem is technical) or to the Content Issues forum (if the problem is an error in the course materials).

Quiz 02: Practice Quiz 1.1

Q1. What kind of 3D printer uses a powder as a material to print with?

  • Fused Filament Fabrication
  • Fused Deposition Modeling
  • Digital Light Projection
  • Powder bed Fusion

Q2. This kind of 3D printer uses a liquid to create a 3D object

  • Fused Filament Fabrication (FFF)
  • Laminated Object Manufacturing (LOM)
  • Stereo Lithography (SLA)
  • Binder Jetting

Q3. Who started the RepRap movement?

  • Adrian Bowyer
  • Matt Griffin
  • Hideo Kodama
  • Scott Crump

Q4. This is the most popular type of desktop 3D printer today.

  • Fused Filament Fabrication
  • Selective Laser Sintering
  • Powder Bed Fusion

Q5. How long has 3D printing been around?

  • 5-9 years
  • 10-19 years
  • 20-29 years
  • 30+ years

Q6. 3D printer kits always have excellent directions to assemble.

  • True
  • False

Q7. FFF 3D printers use what material to print with?

  • Filament
  • Resin
  • Powder
  • Sheets

Quiz 03: Practice Quiz 1.2

Q1. What are the key components of an SLA printer?

  • Galvanometer
  • Hotend
  • Build Plate
  • B and C
  • A and C

Q2. What is the advantage of an SLA printer?

  • There is no advantage
  • Higher resolution
  • Prints need no post processing

Q3. What do you often trade off when considering budget printers?

  • Customer support
  • Low investment up front
  • Advanced features

Q4. Which of these is not a common class of 3D printer?

  • Budget
  • Tinker
  • Workhorse
  • Precision

Q5. Where might you find options to 3D print without owning a 3D printer?

  • Makerspace
  • Library
  • Local enthusiast group
  • All of the above

Quiz 03:Module 1

Q1. Operator A says that 3D printers can print anything, Operator B says they can only print in specific materials. Which one is correct?

  • Operator A
  • Operator B
  • Both Operator A and B
  • Neither

Q2. When considering a kit printer vs a pre-built machine, what considerations should you make in this choice that are critical in the comparison?

  • How much time it takes to build the kit
  • What kind of motion system they use
  • Shipping Costs
  • What filament size the machine uses

Q3. According to the lectures, which of these is a critical point to consider when looking to purchase a machine for professional/institution use?

  • Is it the best price
  • Will the machine be fast enough for my needs
  • Will the company be around to provide support in the future
  • Type of motion system

Q4. Person A says that the RepRap movement is largely the reason we have desktop 3D printers today, Person B says, desktop 3D printers were developed by large companies to enter new markets.

  • Person A
  • Person B
  • Both Person A and B
  • Neither

Q5. Operator A says budget 3D printers are the best option for cost, Operator B says Budget 3D printers have limitations and often don’t offer any typeof troubleshooting or support.

  • Operator A
  • Operator B
  • Both Operator A and B
  • Neither

Q6. Select the components of a 3D printer that allow it to create a part.

  • Build Platform
  • Tool Head
  • Spindle
  • Vice

Q7. Operator A says, building a kit 3D printer is an excellent choice because when you build it you learn the ins and outs of the machine and it can be easier to work with, Operator B says professional desktop machines are an excellent choice because they provide documentation and support to troubleshoot issues with.

  • Operator A
  • Operator B
  • Both Operator A and B
  • Neither

Q8. What is a reason why 3D printing has not become ubiquitous in the world today?

  • Not enough 3D printable files available
  • Mass market didn’t all have the needs
  • Media hype slowed and people lost interest
  • Printers do not work well

Q9. What opportunities do service bureaus offer that most 3D printing users not have the ability to do

  • Exotic Materials
  • Large build volumes
  • Lower cost
  • A and B
  • B and C
  • A and C

Q10. Which of these terms are synonymous with one another?

  • Fused Deposition Modeling (FDM) and Fused Filament Fabrication (FFF)
  • Stereolithography (SLA) and Digital Light Projection (DLP)
  • Laminate Object Manufacturing (LOM) and Binder Jetting

Week 02: 3D Printing Hardware Coursera Quiz Answers

Quiz 02: Practice Quiz 2.1

Q1. Which of the following is not one of the subsystems discussed in this module?

  • Motion Mechanical
  • Extrusion
  • Control
  • Filament

Q2. The interactive interface is used to do what type of actions?

  • Slice the file for printing
  • Select processes on the printer
  • Control the stepper motors
  • Design parts

Q3. Desktop 3D printers are as simple to operate as a standard color paper printer

  • True
  • False

Quiz 02: Practice Quiz 2.2

Q1. What are some of the importance areas to familiarize yourself with in your interactive interface?

  • How to cancel a print
  • How to start a print
  • How to calibrate the printer
  • All of the above

Q2. What are some of the more modern 3D printers using for displays?

  • Tethered computer
  • Digital screen and on panel buttons/dials
  • Touchscreen
  • VR/AR control

Q3. What is firmware?

  • The microcontroller that runs the machine
  • The software that lives in the microcontroller that controls the system
  • The interactive interface menu system
  • The files that you send to the printer via USB or SD car

Quiz 02: Practice Quiz 2.

Q1. What is the standard coordinate system used in 3D printing?

Q2. What is the main purpose of the endstops?

  • Polar
  • Cartesian
  • Rectanguloid
  • Delta
  • To tell the printer it needs maintenance
  • Provide a physical spot that the machine cannot move beyond
  • Establish an initial position (home)
  • Tell the interactive interface that it is able to use specific menu

Q3. What kind of print bed has the ability to print any size object in 1 direction?

  • Circular
  • Rectangular
  • Belted
  • Replaceable

Quiz 03: Module 2 Quiz

Q1. What menu option is the most logical to use when a print is failing?

  • Maintenance
  • Print
  • Abort Print
  • Tune

Q2. A 3D Printer controller board will take inputs from which sensors in order to control the motion system?

  • Endstops
  • Thermistor
  • Filament Detection
  • XYZ Stepper Motor

Q3. When the Control System is sending signals to the rest of the machine to begin a print, why doesn’t the machine just turn the heater on permanently til temp is reached?

  • So the filament won’t overheat
  • So the printer can warm up
  • To allow the sensor data to provide feedback while heating
  • All of the above

Q4. Operator A says PID controls are used to provide feedback to the printer so it can monitor itself while printing.  Operator B says you can tune PID controls on a printer if you want to work with new materials.  Which is correct? 

  • Operator A
  • Operator B
  • Both Operator A and B
  • Neither

Q5. Operator A says the firmware is the software that interprets the gcode and gives instruction to the printer, Operator B says most 3D printers today operate on 32 bit processors to keep up with the demands of high speed printing. Which is correct?

  • Operator A
  • Operator B
  • Both Operator A and B
  • Neither

Q6. Which of the following is what processes the gcode into coordinate values?

  • MCU
  • Hotend
  • Stepper Motor
  • All of the above

Q7. What shape is a delta printers build envelope?

  • Cylinder
  • Rectanguloid
  • Spherical
  • Prism

Q8. Operator A says the build envelope is smaller than the interior of the machine because manufacturers want to limit your part size.  Operator B says its because they have to compensate for the motion systems physical size.  Which is correct?

  • Operator A
  • Operator B
  • Both Operator A and B
  • Neither

Q9. How does the firmware compensate for the type of machine you use (cartesian, delta, polar, etc)?

  • It doesn’t, they all operate the same
  • It estimates the changes from machine to machine
  • It uses an algorithm to change gcode into the appropriate steps of the motor
  • It changes the way the motor reads steps to accommodate the type of printer

Q10. Which of these are outputs that the control system operates?

  • Hotend fan
  • Y Stepper Motor
  • Endstop
  • A and B
  • A and C
  • B and C

Week 03: 3D Printing Hardware Coursera Quiz Answers

Quiz 01: Practice Quiz 3.1

Q1. What type of extrusion system uses a stepper motor housed on the tool head?

  • Direct Drive
  • Bowden
  • Delta
  • Beta

Q2. The Hot End contains the following things

  • Hot Zone
  • Cold Zone
  • Heatbreak
  • Nozzle
  • All of the above

Q3. The PID loop in the hotend controls what?

  • The moderation of temperature
  • The Performance Initializer Dongle
  • The heated bed temperature
  • The difference between the heated bed and the hotend temperature range

Q4. What is the most common nozzle size and material in 3D printing?

  • 4mm Titanium
  • .4mm Steel
  • .04mm Copper
  • .4mm Brass

Q5. Why is active cooling important in 3D printing?

  • It isn’t, you want to print hot and keep parts hot until print is complete
  • It allows certain materials to quickly stabilize and hold their position in a 3D space
  • It allows printing without support in any part
  • It isn’t, the naturally cooling of materials is enough to do the work

Q6. What feature of a build plate is most commonly used and versatile in desktop 3D printing?

  • Heated Build Plate
  • Flexible Build Plate
  • Infinite Build Plate
  • None of the above

Quiz 02 : Practice Quiz 3.2

Q1. What is the most commonly used material in desktop 3D printing?

  • ABS
  • PETG
  • PLA
  • TPU

Q2. What types of plastics are not used in desktop 3D printing?

  • Crystalline
  • Semi Crystalline
  • Thermoplastic
  • Thermoset
  • All of the above

Q3. What are some considerations for 3D printing equipment when looking to print Polycarbonate or Nylon?

  • Drybox
  • Open Air printer
  • Material the nozzle is made of
  • All of the above
  • None of the above

Quiz 03 : Module 3 Quiz

Q1. What advantage does a Bowden extrusion system have over direct drive?

  • Lower mass on the tool head
  • Improved force on the filament
  • Improved grip on the filament
  • None, Bowdens are inferior to direct drive

Q2. Operator A says the hotend is going to heat up the filament above the glass transition temperature of the material.  Operator B says the hotend is going to heat it up to the melting point of the material. 

  • Operator A
  • Operator B
  • Both Operator A and B
  • Neither

Q3. The purpose of the heat break is to

  • Prevent the filament from overheating
  • Allow the hotend to heat up quickly
  • Prevent heat creep into the cold end
  • All of the above

Q4. Why would anyone consider using a larger nozzle size than the standard .4mm

  • Gain more detail in the small features
  • Print faster
  • Print new materials
  • All of the above

Q5. When considering materials you are printing with, why is active cooling not always used? 

  • Some materials warp from cooling
  • Some materials are printed cold
  • Both A and B
  • Neither

Q6. Why is build plate  surface preparation and materials so important for desktop 3D printing?

  • All materials act the same when printed so being consistent is key
  • The part being printed needs to stay firmly planted on the build plate
  • The build plate moves and allows for possible misalignment
  • None of the above

Q7. What material is best suited for mechanical functional parts on a non-enclosed printer?

  • PLA
  • PETG
  • PolyCarbonate
  • Woodfilled

Q8. User A says that PLA is perfectly fine to use in a hot environment. User B says it would be better to use PETG or ABS.  Which user is correct? 

  • User A
  • User B
  • Both User A and B
  • Neither

Q9. If you were to make a part that had to be very durable and strong what material would be the best option? 

  • PLA
  • PETG
  • Nylon
  • Woodfill

Q10. User A says using a larger nozzle like .6mm would make your prints take less time. User B says using a .6mm nozzle would give your model less detail.  Which user is correct?

  • User A
  • User B
  • Both User A and B
  • Neither

Week 04: 3D Printing Hardware Coursera Quiz Answers

Quiz 01 : Practice Quiz 4.1

Q1. After a digital design is created, what is the next step in the process before you can print it?

  • Put the digital design into a slicer
  • Export a mesh file
  • Select the print menu on your printer
  • File must be authenticated

Q2. Which of the following best describes a mesh file?

  • A file that describes the surface geometry of an object by using polygons to represent the surfaces
  • A file that is full of holes so the slicer knows where to place material
  • A file that dictates where to not place material so the printer makes the appropriate part
  • The file generated in CAD software like Fusion 360 or Blender

Q3. What type of file format should I export if I want to print a multi-color object?

  • STL
  • OBJ
  • DOCX
  • JPEG

Quiz 02 : Practice Quiz 4.2

Q1. Which of these is the most commonly used and largest database of downloadable 3D models? 

  • My3DParts
  • Thingiverse
  • Youmagine
  • Pinshape

Q2. Which is the most logical progression of a digital file?

  • Model>Slice>Job File 
  • Model>Export>Slice>Job File
  • Export>Model>Job File
  • Model>Job File

Q3. Which type of mesh file contains surface geometry and color data for printing in a single file?

  • STL
  • STEP
  • OBJ
  • Color printing is not possible

Quiz 03 : Module 4 Quiz

Q1. Which of these is a repository for finding 3D printable models? 

  • TinkerCAD
  • Fabbaloo
  • Google
  • Youmagine

Q2. Why don’t unsupported overhangs print well?

  • Without support the molten plastic will droop
  • Supports are not required ever, the print will be fine
  • The plastic will cool rapidly and shrink disproportionately 
  • Unsupported overhangs are not possible printers always print them 

Q3. User A says a Job File will only provide instructions to the printer on what to do, User B says that a Job File is only produced by using a slicing software.  Which of these two users is correct?

  • User A 
  • User B
  • Both User A and B
  • Neither

Q4. What must you do with a 3D scanned file to 3D print it? 

  • Nothing, the file is already printable 
  • Translate the file into a mech surface geometry file 
  • Blend the file so it is smooth
  • 3D scans are not printable

Q5. If you download a file from Thingiverse, what is the next step you would take to 3D print it? 

  • Import it into CAD software
  • Import it into a slicer
  • Put the file onto an SD card and print it
  • Print directly from Thingiverse

Q6. Operator A says a Multi color desktop printer can use an OBJ file to print with multiple colors, Operator B says a multi color desktop printer uses multiple STL files.  Which Operator is correct? 

  • Operator A
  • Operator B
  • Both Operator A and B
  • Neither

Q7. When a digital design is being created what considerations should you be thinking about for 3D printing? 

  • Strength in the XY plane
  • Overhangs
  • Printing speed
  • All of the above

Q8. What does the job file have to do with the subsystems of a 3D printer? 

  • The job file has nothing to do with the subsystems
  • The job file and slicer both talk to the printer to tell it what to do
  • The job file tells the printer subsystems what to do 
  • The job file is run in the firmware so it is a part of the printer 

Q9. Which change in the slicer will lower the time to print an object the most? 

  • Changing infill from triangle to gyroid 
  • Lowering the infill from 20% to 10% 
  • Increasing the layer height from .1 to .2  
  • All changes have equal impact on speed of printing 

Q10. What impact does infill type and percent have on a print?

  • More infill means the part will be stronger
  • More infill means it will print slower
  • Infill type can make a part stronger or weaker 
  • All of the above 

Week 05: 3D Printing Hardware Coursera Quiz Answers

Quiz 01 : Practice Quiz 5.1

Q1. Why is keeping the box from the printer a good idea? 

  • Easier to ship it back if there is a defect 
  • Easier to store the printer when not in use
  • Acts as a good table for the printer to rest on 
  • There is no need just recycle it 

Q2. Which of these is not a common 1st time print challenges? 

  • Poorly oriented model 
  • Poor bed leveling
  • Bad gcode
  • Print needed supports 

Q3. What is the “hello world” print? 

  • The pre-prepared file that is saved on your SD card
  • A print that says the words “Hello World” 
  • The programming language that you work to generate a part 
  • The firmware’s first command 

Quiz 02 : Practice Quiz 5.2

Q1. Which is not a type of bed leveling system? 

  • Inductive Leveling
  • Capacitive Leveling 
  • Manual Leveling
  • Self Leveling 

Q2. Which is the most common type of leveling system on a 3D printer? 

  • Force Sensitive Resistor 
  • Manual Leveling 
  • Accelerometer 
  • Self Leveling 

Q3. Why is having a routine checklist important? 

  • Lowers risk of a failed print 
  • Lowers the need for maintenance 
  • Improves print speed 
  • All of the above 

Quiz 03 : Module 5 Quiz

Q1. Operator A says that 3D printer bearings don’t have any excessive load so they don’t need to be lubricated aside from when the factory does it.  Operator B says you should lubricate rails every month to properly maintain the machine.  Who is correct? 

  • Operator A 
  • Operator B 
  • Both Operator A and B 
  • Neither

Q2. What is the most common failure that a new 3D printer user and machine might experience? 

1 point

  • Printer stops working ½ way through the print 
  • Hotend won’t heat up 
  • Parts won’t stick to the build plate 
  • Won’t extrude material 

Q3. What is the most logical thing to do before starting a long print? 

  • Make sure was not used before 
  • Make sure there is enough filament 
  • Replace the nozzle 
  • Turn off all other devices in the room 

Q4. When you see this, what does that mean for the nozzle to build plate distance?gPfR HixEemp7w5DYr3HzA b2219e6eac4cb0eb80e0856b0ff2f987 Coursera module 5 quiz

  • The nozzle is too close to the build plate 
  • The nozzle is too far from the build plate 
  • The nozzle is perfect in relation to the build plate. 
  • The nozzle started too close but then moved too far. 

Q5. If your bed leveling is not correct, what implications can that have on the part you are building? 

  • Inaccurate tolerances 
  • Part comes loose from the bed 
  • Difficulty removing the part from the bed after printing 
  • All of the above 

Q6. When you hear popping sounds when printing what is this an indication of?

  • The hotend is too hot
  • The bed is not level 
  • The slicer output bad gcode 
  • The filament has too much moisture 

Q7. Which is true about storing filament properly? 

  • It can be stored anywhere in open space 
  • It depends on the material 
  • It should be stored it in a ziplock bag with desiccant 
  • It should be stored with similar materials 

Q8. After prolonged use what is a common item to check to ensure proper printing? 

  • Belt tension 
  • Moisture in the air 
  • Ambient temperatures 
  • How many files are stored on an SD card 

Q9. If you print the “hello world” print and the part fails on a brand new printer, which is likely the culprit? 

  • The printer is defective 
  • The bed is not properly leveled 
  • The filament is bad 
  • The user pressed the wrong buttons 

Q10. Operator A says when printing you should always watch a printer since they often fail randomly, Operator B says if the first few layers are successful the chances of a successful print are high.  Which is correct?

  • Operator A 
  • Operator B 
  • Both Operator A and B 
  • Neither

Week 06: 3D Printing Hardware Coursera Quiz Answers

Quiz 01 : Practice Quiz 6.1

Q1. After starting a print it is best practice to. 

  • Wait till it finishes heating up and purges 
  • Walk away and check in on the print once in a while 
  • Watch the first layer 
  • Watch the whole print in person or via webcam 

Q2. When prints are finished for functional use what would be an appropriate measure of success? 

  • Uniform color 
  • Accuracy of the part 
  • Ease of support removal 
  • None of the above 

Q3. After the print is done and you have removed your part you should 

  • Leave the printer in its current state so the next user knows it is available
  • Clear off any remnants of printed material from the build plate 
  • Run a calibration to ensure bed leveling is proper for the next user 
  • Turn the machine off before it finishes cooling off 

Quiz 02 : Practice Quiz 6.2

Q1. When sanding a part to achieve a high quality finish, you should 

  • Use a palm sander
  • Use a dremel tool 
  • Use a belt sander 
  • Hand sand 

Q2. Sanding parts to a very smooth finish should 

  • Be done to every part printed 
  • Start with dry sanding and end with wet sanding
  • Be done in a clean room
  • Be done with a power tool

Q3. Assembly of printed parts can be done by using 

  • Glue
  • Epoxy
  • Fasteners
  • Snap Fits
  • All of the above 
  • None of the above

Quiz 03 : Module 6 Quiz

Q1. If the first layer is sparsely printing what is the best course of action? 

  • Continue printing
  • Pause the print and take a closer look
  • Cancel the print 
  • Increase nozzle temperatures 

Q2. When a part is complete and you are inspecting it, what could be a potential issue if you find the part has warped from the print bed? 

  • The material had too much moisture 
  • The bed was not properly level 
  • The bed was not properly prepped
  • A and B 
  • B and C 
  • A and C 

Q3. Before starting a new print what should you check pertaining to the build surface? 

  • It is free from previous print material 
  • It is properly prepped with glue or other surface treatments if needed 
  • It is properly secured in place 
  • All of the above 
  • None of the above 

Q4. Why should you keep sanding speeds low when finishing a 3D printed part? 

  • To allow the plastic to fill in the gaps 
  • To reduce the heat in the part 
  • To prevent the material from changing color 
  • To keep the area more clean 

Q5. When finishing a 3D printed part, what is the recommended finishing grit sandpaper? 

  • 80 grit 
  • 120 grit 
  • 500 grit 
  • 1000 grit 

Q6. Operator A says you can use Super Glue on any printed part. Operator B says some materials don’t bond well with Super Glue and you should use epoxy resins instead.  Which operator is correct? 

  • Operator A 
  • Operator B 
  • Both Operator A and B 
  • Neither

Q7. What are common modifications to a 3D printer to help print large structures quickly? 

  • Enclosure
  • Updated Slicer 
  • Larger Nozzle 
  • Flexible print surface 

Q8. Operator A runs a printing service with 50 printers.  They have to lubricate the bearings once every 2 weeks on a routine schedule.  Operator B runs a single printer at home for 20 hours a week and they say they lubricate their bearings every month.  Who has the correct approach? 

  • Operator A 
  • Operator B 
  • Both Operator A and B 
  • Neither

Q9. What is the most appropriate location to find information on how to take apart your printers extruder? 

  • The manufacturers website
  • A web search 
  • Group forum
  • A mechanical engineer 

Q10. Operator A is having difficulty printing with nylon. They say the prints warp frequently.  Operator B has perfect nylon prints and they say they just added a larger nozzle, an enclosure, and a new extruder to their machine.  Which modification has made the most significant impact on printing nylon for Operator B? 

  • Larger nozzle 
  • Enclosure
  • New extruder 
  • None it was done in the slicer 

We will Update These Answers Soon.

More About This Course

This course will provide an in-depth exploration of desktop 3D printing hardware. It will examine the history of desktop 3D printing and demonstrate how 3D printers are made and how they work. This course will also provide step-by-step instructions for how to use and repair a 3D printer. It will also explore the different types of materials that can be 3D printed and will demonstrate how you can create various objects using these tools and materials. Learners who complete this course will be able to successfully operate, repair, and upgrade a 3D printer. In addition, learners who enroll in the course certificate will be able to purchase a desktop 3D printer at a discounted price (provided by Ultimaker).

If you enjoy this business course and are interested in an MBA, consider applying to the iMBA, a flexible, fully-accredited online MBA at an incredibly competitive price offered by the University of Illinois. For more information, please see the Resource page in this course and onlinemba.illinois.edu.


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