Arrange textile production steps from raw material to finished cloth. Items: (i) Weaving, (ii) Cotton, (iii) Cloth, (iv) Thread. Choose the correct manufacturing flow.
Correct Answer: (ii), (iv), (i), (iii)
Introduction / Context:From farm to fabric, cotton must be spun into thread/yarn before weaving can produce cloth. This problem tests familiarity with the canonical production order in textiles.
Given Data / Assumptions:
- Raw: Cotton.
- Intermediate: Thread (yarn).
- Process: Weaving.
- Output: Cloth.
Concept / Approach:Transformations must respect feasibility: you cannot weave cotton lint directly into cloth without first spinning it into threads.
Step-by-Step Solution:Sequence: (ii) Cotton → (iv) Thread → (i) Weaving → (iii) Cloth.This is the orthodox pipeline used in textile production.
Verification / Alternative check:Option B places Cloth before Weaving, which is impossible. Options C and D scramble the order by starting from the middle or output.
Why Other Options Are Wrong:They contradict the necessary precondition that weaving uses threads/yarns as inputs.
Common Pitfalls:
- Equating “cotton” (raw fiber) with “thread” (spun yarn), which are distinct stages.
Final Answer:(ii), (iv), (i), (iii).