16Hit1600
Craft and StructureMediumAdjective fixed by 'replaced by'

Craft and Structure practice question

The mill's steam engines were ____ within a decade, replaced by electric motors that were far cheaper to run.

Which choice completes the text with the most logical and precise word or phrase?

  1. A. obsoleteCorrect
  2. B. refined
  3. C. essential
  4. D. restored

Answer: A. obsolete

The engines were replaced by something cheaper — they were out of date and no longer used. That is 'obsolete'.

Why the other answers are wrong

B. refined
'Refined' means improved; the engines were replaced, not improved.
C. essential
Something essential wouldn't be replaced.
D. restored
'Restored' means brought back into use, the opposite of being replaced.

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