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District of Columbia Permit Test: Alcohol & Drugs Practice Questions
BAC limits, implied consent and DUI penalties.
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Question 1
What program must anyone guilty of impaired driving in DC complete?
A one-hour safety video
The Ignition Interlock Device (IID) Program
A defensive driving class only
No program is required
Correct answer: The Ignition Interlock Device (IID) Program
Any person guilty of impaired driving must enroll in and complete the IID Program, installing IIDs on all registered vehicles.
Source: Introduction – Vision Zero, Distracted & Impaired Driving
Question 2
About what share of traffic deaths involve alcohol-impaired driving, per the DC manual?
About one-third
About 5%
About two-thirds
Nearly all
Correct answer: About one-third
Alcohol-impaired driving accounts for about one-third of traffic deaths, and drugs are involved in about 18%.
Source: Introduction – Vision Zero, Distracted & Impaired Driving
Question 3
Which factor affects blood alcohol concentration (BAC)?
The color of your eyes and hair
Food in the stomach
The color of the car you are driving
The time zone where you are drinking
Correct answer: Food in the stomach
Factors include how quickly you drink, body weight, food in the stomach, alcohol concentration, medications, and fatigue, stress and mood.
Source: Introduction – Vision Zero, Distracted & Impaired Driving
Question 4
According to the DC manual, how does sleep deprivation compare with alcohol in affecting driving?
Much less than alcohol
Not at all
Only at high speeds
Just as much, sometimes more
Correct answer: Just as much, sometimes more
Sleep deprivation affects driving just as much, and sometimes more, than alcohol.
Source: Introduction – Vision Zero, Distracted & Impaired Driving
Question 5
What is the best way to prevent drowsy driving?
Rolling down the windows
Turning up the music
Drinking extra coffee
Getting adequate sleep
Correct answer: Getting adequate sleep
Rolling down windows or turning up music has little effect and caffeine only helps briefly; adequate sleep is the best prevention.
Source: Introduction – Vision Zero, Distracted & Impaired Driving
Question 6
Why should you avoid "stay-awake" drugs on long drives?
They can make your driving more dangerous
They are the best fatigue cure
They improve night vision
They are required by law
Correct answer: They can make your driving more dangerous
Don’t depend on stay-awake drugs; they are apt to make your driving even more dangerous.
Source: Distracted Driver Syndrome, Fatigue & Cellular Phones
Question 7
Drugs are involved in about what share of traffic-related deaths, per the DC manual?
About 2%
About 50%
About 18%
About 80%
Correct answer: About 18%
Drugs are involved in about 18% of traffic-related deaths.
Source: Introduction – Vision Zero, Distracted & Impaired Driving
Question 8
After a DC DUI conviction, how long is the minimum revocation for a third offense?
6 months
2 years
1 year
5 years
Correct answer: 2 years
Minimum revocation is 6 months first offense, 1 year second, 2 years third or subsequent.
Source: Important Things to Know
Question 9
Impaired driving includes driving while affected by which of these?
Only illegal drugs
Only alcohol over 0.15
Only prescription drugs
Alcohol, drugs or sleepiness
Correct answer: Alcohol, drugs or sleepiness
Operating a vehicle while affected by alcohol, legal or illicit drugs, and sleepiness is all impaired driving.
Source: Introduction – Vision Zero, Distracted & Impaired Driving
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