UPSC CSE Prelims
Question 17
"3D printing" has applications in which of the following ?
- Preparation of confectionery items
- Manufacture of bionic ears
- Automotive industry
- Reconstructive surgeries
- Data processing technologies
Select the correct answer using the code given below :
View correct answer and explanation
Correct answer: D
Correct Option: D
Explanation: Additive manufacturing (3D printing) can form edible confectionery, custom medical implants, automotive parts and surgical models, as well as hardware and structures used in electronics/data-processing technology.
Statement/Pair-wise Analysis:
Statement/Item 1: Correct - Food-grade 3D printers can build customised confectionery shapes.
Statement/Item 2: Correct - Custom bionic-ear scaffolds and prosthetic structures can be manufactured additively.
Statement/Item 3: Correct - Automakers prototype and manufacture selected parts with 3D printing.
Statement/Item 4: Correct - Patient-specific models and implants assist reconstructive surgery.
Statement/Item 5: Correct - Printing of electronic components, device housings and microstructures supports data-processing technologies.
Option-wise Analysis:
A: Incorrect - omits correct statement/items 2, 5.
B: Incorrect - omits correct statement/items 1, 4.
C: Incorrect - omits correct statement/items 2, 3, 5.
D: Correct - includes all and only the true statements/items.
Review Note: “Data processing technologies” is broad; interpret as 3D-printed components used in electronic/computing devices rather than printing information itself.