Which of the following statements is/are correct regarding 4D printing? 1. 4D printing is based on multiplicative manufacturing 2. 4D printing uses smart materials to manufacture the desired item 3. Smart materials change in response to environmental health

Asked in GPSC Prelims CSP 2 2019 · Topic: Future Trends in Information and Communication Technology (Digital Twins Technology)

1. 1 and 2 only
2. 2 and 3 only
3. 3 only
4. 1, 2 and 3

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