ACT English Practice Question #1352 (Medium (30)) | Test Citadel
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ACT English Difficulty: Medium (30)

Digital ACT English Practice Question #1352

Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.

Choose the best option for the underlined portion: The municipal water treatment facility will maintain continuous filtration unless emergency generators engage automatically during a grid power outage.
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Test conditional logic: backup generators are needed FOR continuous filtration, so use 'provided that' or 'if', never 'unless'.

Masterclass Solution & Distractor Trap Analysis

The facility will maintain filtration ON THE CONDITION THAT generators engage during an outage. 'Unless' implies that generator activation would STOP filtration, which is illogical. 'Provided that' correctly states the prerequisite conditio...

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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