DRE Test Questions With Accurate Answers 100%
Guarantee Pass 2026/2027
1. Describe how the composition of alcohol affects its properties and effects on
the human body.
The presence of carbon, hydrogen, and oxygen in alcohol
molecules influences their solubility and interaction with biological
systems.
Alcohol's composition is irrelevant to its effects on the body.
Alcohol is composed solely of carbon, which determines its toxicity.
The elements in alcohol do not affect its physical properties.
2. The federal government and the majority of states use the following decision
to determine admissibility of scientific evidence in court:
patriot
tort
frye
daubert
brady
3. Discuss the implications of the 22% positive test rate for illegal drugs among
drivers as reported in the 2013-2014 National Roadside Survey.
The 22% positive test rate shows that drug use is decreasing among
drivers.
The 22% positive test rate suggests that most drivers are sober.
The 22% positive test rate is irrelevant to driving safety.
, The 22% positive test rate indicates a significant prevalence of drug
impairment among drivers, raising concerns for road safety.
4. List the categories of drugs that were part of the Johns Hopkins Laboratory
Study.
Stimulants, depressants, hallucinogens, and narcotics.
Antibiotics, analgesics, anesthetics, and steroids.
Narcotics, antidepressants, hallucinogens, and stimulants.
Stimulants, antibiotics, hallucinogens, and sedatives.
5. Discuss how individual differences in physiology can impact the
interpretation of chemical test results for drug impairment.
Chemical tests measure only the presence of drugs, not their effects.
Individual differences in physiology, such as metabolism and
tolerance, can lead to varying effects of drugs, making chemical
tests less reliable.
All individuals react the same way to drugs regardless of physiology.
Physiological differences have no impact on drug effects.
6. What is the active ingredient in cannabis?
Delta-9 THC
Cocanol
Carboxy-9 THC
Cocaethylene
7. Describe how the Walk and Turn and One Leg Stand tests help in assessing
impairment due to Marijuana use.
, These tests analyze the chemical composition of the breath.
These tests assess cognitive function and memory recall.
These tests evaluate balance and coordination, which are often
impaired by Marijuana.
These tests measure blood alcohol levels to determine impairment.
8. If a new study found that only 70% of blood tests confirmed the presence of
drug categories predicted by DRE's, what implications could this have for
drug recognition evaluations?
It would imply that all DRE's are performing poorly.
It would indicate that drug recognition evaluations are completely
ineffective.
It may suggest a need for improved training or evaluation methods
for DRE's.
It would mean that drug categories are not relevant to driving safety.
9. List the six subcategories of CNS depressants.
Benzodiazepines, Stimulants, Antidepressants, Alcohol, Opioids,
Muscle relaxants
Stimulants, Hallucinogens, Cannabinoids, Alcohol, Opioids, Inhalants
Barbiturates, Stimulants, Hallucinogens, Alcohol, Antidepressants,
Muscle relaxants
Barbiturates, Benzodiazepines, Non-benzodiazepine sleep
medications, Alcohol, Opioids, Muscle relaxants
10. Two subcategories of Narcotic Analgesics are Opiates and
Opium Derivatives
, Natural Alkaloids
Fentanyl Analogs
Analgesics
Opioids
11. If a driver has recently consumed Cannabis, how might the presence of 11-
OH-THC and THC-COOH in their system affect their driving performance?
Both metabolites enhance driving performance.
Neither metabolite affects driving performance.
The presence of 11-OH-THC may impair driving performance due to
its psychoactive effects, while THC-COOH indicates prior use but
does not directly impair driving.
THC-COOH will impair driving performance more than 11-OH-THC.
12. Describe the primary effects of Morphine as an opioid and its implications
for drug impairment.
Morphine is a depressant that enhances mood and cognitive function.
Morphine is an opioid that primarily acts as a pain reliever and can
cause sedation, which may impair driving ability.
Morphine is a hallucinogen that alters perception and sensory
experiences.
Morphine is a stimulant that increases alertness and energy levels.
13. What classification does Morphine fall under in drug categories?
Depressant
Opioid
Guarantee Pass 2026/2027
1. Describe how the composition of alcohol affects its properties and effects on
the human body.
The presence of carbon, hydrogen, and oxygen in alcohol
molecules influences their solubility and interaction with biological
systems.
Alcohol's composition is irrelevant to its effects on the body.
Alcohol is composed solely of carbon, which determines its toxicity.
The elements in alcohol do not affect its physical properties.
2. The federal government and the majority of states use the following decision
to determine admissibility of scientific evidence in court:
patriot
tort
frye
daubert
brady
3. Discuss the implications of the 22% positive test rate for illegal drugs among
drivers as reported in the 2013-2014 National Roadside Survey.
The 22% positive test rate shows that drug use is decreasing among
drivers.
The 22% positive test rate suggests that most drivers are sober.
The 22% positive test rate is irrelevant to driving safety.
, The 22% positive test rate indicates a significant prevalence of drug
impairment among drivers, raising concerns for road safety.
4. List the categories of drugs that were part of the Johns Hopkins Laboratory
Study.
Stimulants, depressants, hallucinogens, and narcotics.
Antibiotics, analgesics, anesthetics, and steroids.
Narcotics, antidepressants, hallucinogens, and stimulants.
Stimulants, antibiotics, hallucinogens, and sedatives.
5. Discuss how individual differences in physiology can impact the
interpretation of chemical test results for drug impairment.
Chemical tests measure only the presence of drugs, not their effects.
Individual differences in physiology, such as metabolism and
tolerance, can lead to varying effects of drugs, making chemical
tests less reliable.
All individuals react the same way to drugs regardless of physiology.
Physiological differences have no impact on drug effects.
6. What is the active ingredient in cannabis?
Delta-9 THC
Cocanol
Carboxy-9 THC
Cocaethylene
7. Describe how the Walk and Turn and One Leg Stand tests help in assessing
impairment due to Marijuana use.
, These tests analyze the chemical composition of the breath.
These tests assess cognitive function and memory recall.
These tests evaluate balance and coordination, which are often
impaired by Marijuana.
These tests measure blood alcohol levels to determine impairment.
8. If a new study found that only 70% of blood tests confirmed the presence of
drug categories predicted by DRE's, what implications could this have for
drug recognition evaluations?
It would imply that all DRE's are performing poorly.
It would indicate that drug recognition evaluations are completely
ineffective.
It may suggest a need for improved training or evaluation methods
for DRE's.
It would mean that drug categories are not relevant to driving safety.
9. List the six subcategories of CNS depressants.
Benzodiazepines, Stimulants, Antidepressants, Alcohol, Opioids,
Muscle relaxants
Stimulants, Hallucinogens, Cannabinoids, Alcohol, Opioids, Inhalants
Barbiturates, Stimulants, Hallucinogens, Alcohol, Antidepressants,
Muscle relaxants
Barbiturates, Benzodiazepines, Non-benzodiazepine sleep
medications, Alcohol, Opioids, Muscle relaxants
10. Two subcategories of Narcotic Analgesics are Opiates and
Opium Derivatives
, Natural Alkaloids
Fentanyl Analogs
Analgesics
Opioids
11. If a driver has recently consumed Cannabis, how might the presence of 11-
OH-THC and THC-COOH in their system affect their driving performance?
Both metabolites enhance driving performance.
Neither metabolite affects driving performance.
The presence of 11-OH-THC may impair driving performance due to
its psychoactive effects, while THC-COOH indicates prior use but
does not directly impair driving.
THC-COOH will impair driving performance more than 11-OH-THC.
12. Describe the primary effects of Morphine as an opioid and its implications
for drug impairment.
Morphine is a depressant that enhances mood and cognitive function.
Morphine is an opioid that primarily acts as a pain reliever and can
cause sedation, which may impair driving ability.
Morphine is a hallucinogen that alters perception and sensory
experiences.
Morphine is a stimulant that increases alertness and energy levels.
13. What classification does Morphine fall under in drug categories?
Depressant
Opioid
