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Arrange the steps of debottlenecking a line in order:

1. Identify the stage with the lowest rated capacity

2. Uprate or duplicate that stage

3. Identify the new limiting stage

4. Repeat until the target throughput is reached

Select the correct sequence.

  • A.1, 3, 2, 4
  • B.2, 3, 1, 4
  • C.1, 2, 3, 4
  • D.2, 1, 3, 4

Answer: C

Correct answer: 1, 2, 3, 4

Debottlenecking is iterative: find the slowest stage, uprate or duplicate it, find the new limiting stage - because relieving one constraint always reveals another - and repeat until the target is met or the next step costs more than it is worth.

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