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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
Correct Answer: (b)
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This question appeared in the GPSC Prelims 2019 examination (GS-II). It is Question 128 out of 400 questions in this paper.
This question was part of the GPSC Prelims 2019 (GS-II). The GPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all GPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.