Louisiana: Alcohol and drugs — Part 5 Practice Test
Questions in this part include: “Why can driving after using drugs such as amphetamines, tranquilizers and barbiturates be hazardous?” · “What are the penalties for vehicle negligent injury, according to the manual?”
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Questions are original and based on the official manual "Class D & E Driver’s Guide" (Revised August 2025 (DPSMV2052 R08/25)), Louisiana Office of Motor Vehicles.
All 18 questions in this practice test
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Why can driving after using drugs such as amphetamines, tranquilizers and barbiturates be hazardous?
- Faster reflexes and sharper judgment at night
- Improved night vision and better coordination
- A shorter stopping distance and quicker steering
- Drowsiness, reduced coordination and poor judgment
Show answer
Correct answer: Drowsiness, reduced coordination and poor judgment
The manual says such drugs can be hazardous, and possibly lethal, because of drowsiness, reduced coordination and poor judgment or risk taking.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 125 · Open this page in the manual (Manual page 125)
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About how long does it take for the effects of smoking one marijuana cigarette to wear off?
- About 30 minutes
- Five to six hours
- About one hour
- About 24 hours
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Correct answer: Five to six hours
The manual says it takes five to six hours for the effects of smoking one marijuana cigarette to wear off, compared with about an hour for a single drink.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 125 · Open this page in the manual (Manual page 125)
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With some users, what does marijuana interfere with when driving?
- The ability to hear sirens only
- The ability to read road signs only
- The ability to judge time, speed and distance
- The ability to steer a straight line only
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Correct answer: The ability to judge time, speed and distance
The manual says that with some users, marijuana interferes with the ability to judge time, speed and distance.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 125 · Open this page in the manual (Manual page 125)
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What effect does marijuana have on young people, according to the manual?
- It impairs concentration and retaining information
- It improves memory and the ability to learn
- It speeds up learning of new driving skills
- It has no effect on concentration or memory
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Correct answer: It impairs concentration and retaining information
The manual says in young people marijuana impairs the ability to concentrate and retain information.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 125 · Open this page in the manual (Manual page 125)
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Which of these can marijuana use cause, according to the manual?
- A slower heart rate and calm feelings in all users
- Increased heart rate and, in some users, anxiety
- Better vision and faster reaction time at night
- Sharper judgment of speed and distance in all users
Show answer
Correct answer: Increased heart rate and, in some users, anxiety
The manual says marijuana use can cause increased heart rate and make some users paranoid and anxious.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 125 · Open this page in the manual (Manual page 125)
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Which offense is inflicting any injury with a vehicle while under the influence of alcohol or drugs and/or with a BAC of 0.08% or more (R.S. 14:39.1)?
- Vehicular homicide
- Hit and run driving
- Vehicle negligent injury
- Flight from an officer
Show answer
Correct answer: Vehicle negligent injury
Under R.S. 14:39.1, vehicle negligent injury is inflicting any injury with a vehicle while under the influence of alcohol or drugs and/or with a BAC of 0.08% or more.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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What are the penalties for vehicle negligent injury, according to the manual?
- A fine of not less than $2,000 and imprisonment of at least five years
- A fine of not more than $1,000 or imprisonment for not more than six months, or both
- A fine of not more than $5,000 or imprisonment for not more than one year
- A fine of not more than $2,000 or imprisonment for not more than five years
Show answer
Correct answer: A fine of not more than $1,000 or imprisonment for not more than six months, or both
Penalties for vehicle negligent injury include fines of not more than $1,000 or imprisonment for not more than six months, or both.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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What kind of injury is involved in first degree vehicle negligent injury (R.S. 14:39.2)?
- Any injury, however minor
- Property damage only
- A fatal injury
- Serious bodily injury
Show answer
Correct answer: Serious bodily injury
First degree vehicle negligent injury is inflicting serious bodily injury while under the influence of alcohol or drugs and/or with a BAC of 0.08% or more.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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What are the penalties for first degree vehicle negligent injury, according to the manual?
- A fine of not more than $1,000 or imprisonment for not more than six months, or both
- A fine of not less than $2,000 and imprisonment of at least five years
- A fine of not more than $15,000 or imprisonment for not more than 30 years
- A fine of not more than $2,000 or imprisonment for not more than five years, or both
Show answer
Correct answer: A fine of not more than $2,000 or imprisonment for not more than five years, or both
Penalties for first degree vehicle negligent injury include fines of not more than $2,000 or imprisonment for not more than five years, or both.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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What is it called when, by driving on Louisiana highways, you are deemed to have given your consent to a test of your blood for alcohol content and for abused or illegal controlled dangerous substances?
- Administrative waiver
- Implied consent
- Automatic release
- Presumed innocence
Show answer
Correct answer: Implied consent
The manual says that by driving on the highways of Louisiana you are deemed to have given consent to such a test, which is known as implied consent.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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Which of these may you be asked to undergo when an officer suspects you of driving under the influence?
- A new written knowledge test at the license office
- A road skills test with an examiner in the car
- A cash bond before any other test can be given
- A field sobriety test or a blood, urine or breath test
Show answer
Correct answer: A field sobriety test or a blood, urine or breath test
The manual says you may be asked to perform a field sobriety test or consent to a blood, urine, or breath test to determine your blood-alcohol level.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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Whose discretion governs whether the alcohol or drug test is administered?
- A law enforcement officer with reason to believe you were impaired
- Only a judge, after a hearing held before you are stopped
- The clerk at the Office of Motor Vehicles who issued your license
- Your own choice, whenever you decide you want to be tested
Show answer
Correct answer: A law enforcement officer with reason to believe you were impaired
The test is administered at the discretion of a law enforcement officer who has reason to believe you were driving under the influence of alcohol or drugs.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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At the time of the test, what will the officer advise you of?
- Only your criminal rights, not civil ones
- Only your civil rights, not criminal ones
- Both your criminal and civil rights
- Only the penalty for refusing to submit
Show answer
Correct answer: Both your criminal and civil rights
The officer will advise you of both your criminal and civil rights as they relate to your arrest and to the chemical test.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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For how long are your driving privileges suspended if you refuse to submit to the alcohol analysis test on a first offense?
- 365 days
- 90 days
- 180 days
- 730 days
Show answer
Correct answer: 365 days
The manual says refusing the test suspends your driving privileges for 365 days on a first offense.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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For how long are your driving privileges suspended if you refuse the alcohol analysis test on a second or subsequent offense?
- 365 days
- 180 days
- 730 days
- 1095 days
Show answer
Correct answer: 730 days
The manual says refusing the test on a second or subsequent offense suspends your driving privileges for 730 days.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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You are 21 or older and submit to the test, which shows a BAC of 0.08% to 0.149%. For how long are your driving privileges suspended?
- 90 days
- 365 days
- Two years (730 days)
- 180 days
Show answer
Correct answer: 180 days
The manual says a BAC of 0.08% to 0.149% for a driver 21 or older results in a 180-day suspension.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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You are 21 or older and submit to the test, which shows a BAC of 0.15% or greater. For how long are your driving privileges suspended?
- 180 days
- One year (365 days)
- Three years (1095 days)
- Two years (730 days)
Show answer
Correct answer: Two years (730 days)
The manual says a BAC of 0.15% or greater results in a two-year (730-day) suspension.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 126 · Open this page in the manual (Manual page 126)
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You are under 21 and submit to the test, which shows a BAC of 0.02% or more. For how long are your driving privileges suspended?
- 30 days
- 180 days
- 365 days
- Two years (730 days)
Show answer
Correct answer: 180 days
The manual says a driver under 21 whose test shows a BAC of 0.02% or more has driving privileges suspended for 180 days.
Source: Class D & E Driver’s Guide (Revised August 2025 (DPSMV2052 R08/25)), page 127 · Open this page in the manual (Manual page 127)