Alberta Class 7 Learner Knowledge Test · Question
In Alberta, an Approved Screening Device (ASD) measures:
In Alberta, peace officers use an Approved Screening Device at the roadside to measure a driver's breath alcohol concentration to detect potential impairment. I
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Question: In Alberta, an Approved Screening Device (ASD) measures:
Answer options:
- Speed
- Tire pressure ✅ Breath alcohol concentration
- Drug levels in urine
Correct answer: Breath alcohol concentration
Explanation: In Alberta, peace officers use an Approved Screening Device at the roadside to measure a driver's breath alcohol concentration to detect potential impairment. It does not measure speed, which is tracked by radar, nor tire pressure or urine drug levels, which require mechanical gauges or laboratory analysis. Under the Traffic Safety Act, failing or refusing this immediate breath test triggers severe provincial impaired driving sanctions. Class 7 exam candidates must recognize how law enforcement detects impairment, as roadside alcohol-testing procedures and legal limits are highly tested concepts on the Alberta knowledge exam.
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Question explanations
- Two vehicles arrive at an uncontrolled intersection at the same time from different roads. Which vehicle shoul
- You are turning left at an intersection with a green light (no green arrow). What must you do?
- An emergency vehicle is approaching from behind with lights and siren activated. What should you do?
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