3D Printing and Its Applications MCQs 50 Score: 0 Attempted: 0/50 Subscribe 1. : What is 3D printing also known as? (A) Subtractive manufacturing (B) Additive manufacturing (C) Reductive manufacturing (D) Compact manufacturing 2. : Which file format is most commonly used in 3D printing? (A) .DOCX (B) .PDF (C) .STL (D) .JPEG 3. : What material is commonly used in FDM 3D printers? (A) Steel (B) PLA (C) Nylon (D) Copper 4. : Which industry first adopted 3D printing for prototyping? (A) Food (B) Automotive (C) Fashion (D) Education 5. : Which technology is used in 3D printing to create objects layer by layer? (A) Laser cutting (B) Injection molding (C) Layer-by-layer deposition (D) Chemical vapor deposition 6. : In what year was the first 3D printer created? (A) 1984 (B) 1994 (C) 1975 (D) 2001 7. : Who is considered the inventor of 3D printing? (A) Elon Musk (B) Charles Hull (C) Steve Jobs (D) Alan Turing 8. : Which 3D printing process uses a laser to solidify a liquid resin? (A) FDM (B) SLA (C) SLS (D) DLP 9. : What is a key advantage of 3D printing? (A) High mass production speed (B) Customization of designs (C) High cost of materials (D) Limited geometry 10. : What does FDM stand for in 3D printing? (A) Fusion Deposition Manufacturing (B) Fused Deposition Modeling (C) Fabrication Design Model (D) Finite Deposition Method 11. : What type of 3D printing is best for metal parts? (A) SLA (B) FDM (C) DMLS (D) DLP 12. : What is the main limitation of consumer-grade 3D printers? (A) Large build volume (B) Low resolution (C) High speed (D) Unlimited material support 13. : Which of the following is NOT a 3D printing application? (A) Medical implants (B) Car body painting (C) Architecture modeling (D) Aerospace parts 14. : Which field benefits from bioprinting technology? (A) Agriculture (B) Education (C) Medicine (D) Oil and Gas 15. : What is one environmental benefit of 3D printing? (A) Generates more waste (B) Reduces material waste (C) Increases emissions (D) Requires more water 16. : Which software is commonly used for designing 3D models? (A) AutoCAD (B) Photoshop (C) Excel (D) WordPress 17. : What is the typical unit of measurement for layer height in 3D printing? (A) Millimeters (B) Inches (C) Microns (D) Centimeters 18. : Which 3D printing process is commonly used for ceramics? (A) SLS (B) DLP (C) LOM (D) Binder Jetting 19. : Which material is biodegradable and used in 3D printing? (A) ABS (B) PLA (C) Nylon (D) PETG 20. : What is the main function of a slicer software in 3D printing? (A) Design modeling (B) Material selection (C) Converting STL to G-code (D) Painting the object 21. : Which of these is a post-processing method in 3D printing? (A) Laser scanning (B) Sanding (C) Drawing (D) Rendering 22. : What is a support structure in 3D printing? (A) A frame for the printer (B) Temporary material to support overhangs (C) Printer housing (D) Foundation for the print bed 23. : Which sector uses 3D printing for creating dental models and aligners? (A) Mechanical engineering (B) Architecture (C) Healthcare (D) Electronics 24. : What is the major disadvantage of 3D printing in mass production? (A) Lack of skilled workers (B) Time-consuming per unit (C) Expensive molds (D) Waste generation 25. : Which 3D printing technique uses powder material? (A) SLA (B) FDM (C) SLS (D) DLP 26. : What is meant by print resolution in 3D printing? (A) Speed of the printer (B) Number of prints per day (C) Detail of printed objects (D) Size of printer bed 27. : Which industry uses 3D printing to create lightweight drone parts? (A) Education (B) Agriculture (C) Aerospace (D) Finance 28. : What temperature is generally required to print with ABS material? (A) 180°C (B) 230°C (C) 100°C (D) 70°C 29. : What is the typical function of a heated bed in a 3D printer? (A) Cooling prints (B) Adding color (C) Preventing warping (D) Increasing resolution 30. : What is a hybrid 3D printer capable of? (A) Printing and CNC machining (B) Printing and drawing (C) Printing and scanning (D) Printing and baking 31. : What is the role of G-code in 3D printing? (A) Material base (B) Power supply (C) Instruction code for printers (D) Cooling system 32. : Which 3D printing method uses ultraviolet light to cure resin? (A) SLA (B) FDM (C) SLS (D) Binder Jetting 33. : What is the term for the build area in a 3D printer? (A) Print zone (B) Print bed (C) Print dock (D) Layer zone 34. : Which of the following is a flexible 3D printing material? (A) PLA (B) ABS (C) TPU (D) PETG 35. : What is warping in 3D printing? (A) Print speed error (B) Material misfeed (C) Curling of printed layers (D) Incorrect slicing 36. : What component extrudes material in an FDM printer? (A) Cooling fan (B) Nozzle (C) Belt (D) Motor 37. : How can overhang issues be solved in 3D prints? (A) Increase temperature (B) Use support structures (C) Print faster (D) Use larger nozzle 38. : What does the infill percentage determine in 3D printing? (A) Wall thickness (B) Build time (C) Internal density (D) Print temperature 39. : What does dual extrusion enable in 3D printing? (A) Faster printing (B) Multi-color or multi-material printing (C) Wireless connection (D) Larger prints 40. : Which of the following is NOT a limitation of 3D printing? (A) Limited material choices (B) Complex geometries (C) Surface finish issues (D) Slow print speed 41. : What type of 3D printing is best for highly detailed miniatures? (A) FDM (B) SLA (C) SLS (D) DMLS 42. : Which country is a leading producer of 3D printers? (A) USA (B) Brazil (C) Russia (D) Egypt 43. : What is the purpose of a filament spool? (A) Provide power (B) Feed raw material (C) Cool the print (D) Heat the printer 44. : What does “build plate leveling” ensure? (A) Equal filament feed (B) Proper adhesion of first layer (C) Speed of printing (D) Temperature stability 45. : What is the main risk of 3D printing without ventilation? (A) Filament jamming (B) Toxic fume buildup (C) Inaccurate G-code (D) Power overload 46. : What’s a key challenge in metal 3D printing? (A) Cooling time (B) High power lasers (C) Design flexibility (D) Color options 47. : What is the benefit of 3D printing in space missions? (A) Faster rocket speed (B) Making tools on demand (C) Reducing astronaut weight (D) Increasing solar power 48. : Which 3D printing method is ideal for jewelry? (A) FDM (B) SLA (C) SLS (D) DMLS 49. : What is a raft in 3D printing? (A) Printer bed (B) Extra layer under print for adhesion (C) File format (D) Cooling part 50. : Which of the following is a safety precaution in 3D printing? (A) Directly touch hot end (B) Use in closed unventilated room (C) Wear gloves and ventilate area (D) Print near water source