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Newfoundland and Labrador Class 5I Practice Test
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Passing target: 85% (34/40)
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What is the purpose of an alcohol ignition-interlock device?
Correct answer: Prevent starting unless the breath test is passed
Why
An interlock is designed to prevent operation when the required breath test is not passed.
Verified against Newfoundland and Labrador Driver's Handbook · Road Safety · p. 41, 42
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