Northwest Territories Knowledge Test Coach
Licences and penaltiesQuestion 190 of 202

An interlock device reads a BAC from 20 to 29 mg in 100 mL of blood. What happens?

  1. The vehicle will not start
  2. The vehicle starts and nothing is recorded
  3. The vehicle starts, but the device records a warn violation
  4. The device asks for a second sample
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Correct answer: The vehicle starts, but the device records a warn violation

In the warn range the vehicle starts. The device keeps a record of the warn violation.

Source: Driver's Manual: A guide to safely operate cars and light trucks (Government of the Northwest Territories, revised August 2022), Chapter 9, Alcohol Ignition Interlock Program, page 143

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Questions last reviewed: 18 October 2026