#1
Which of the following substances is most commonly associated with impaired driving?
Alcohol
ExplanationAlcohol is the primary substance associated with impaired driving due to its widespread use and effects on motor skills and judgment.
#2
Which of the following is NOT a common sign of impairment by drugs or alcohol?
Heightened judgment
ExplanationImpairment by drugs or alcohol typically leads to impaired judgment, not heightened judgment.
#3
Which of the following is a common field sobriety test used by law enforcement to detect impairment?
Breathalyzer test
ExplanationThe breathalyzer test is a common field sobriety test used by law enforcement to measure a person's blood alcohol concentration (BAC) from their breath.
#4
Which age group has the highest rate of impaired driving?
Young adults (ages 21-34)
ExplanationYoung adults aged 21-34 have the highest rate of impaired driving, often due to factors such as peer influence and risk-taking behavior.
#5
Which of the following factors can influence how quickly alcohol affects a person?
Gender
ExplanationGender can influence how quickly alcohol affects a person due to differences in body composition, metabolism, and enzyme activity.
#6
What is the legal blood alcohol concentration (BAC) limit for drivers in most US states?
0.08%
ExplanationThe legal BAC limit for drivers in most US states is 0.08%, beyond which driving is considered impaired.
#7
Which neurotransmitter is primarily affected by alcohol consumption, leading to impairment?
Gamma-aminobutyric acid (GABA)
ExplanationAlcohol consumption primarily affects GABA, leading to decreased inhibition and impaired motor function.
#8
Which of the following drugs can cause significant impairment while driving even at low doses?
Marijuana
ExplanationMarijuana can cause significant impairment while driving, even at low doses, affecting reaction time and judgment.
#9
What is the legal age for consuming alcohol in most US states?
21
ExplanationThe legal age for consuming alcohol in most US states is 21, aimed at reducing underage drinking and its associated risks.
#10
Which of the following is a consequence of driving under the influence of drugs or alcohol?
All of the above
ExplanationDriving under the influence of drugs or alcohol can result in various consequences, including accidents, legal penalties, and harm to oneself or others.
#11
Which drug is known to significantly impair a person's ability to drive even when taken in prescribed doses?
Antidepressants
ExplanationAntidepressants, despite being taken in prescribed doses, can significantly impair a person's ability to drive due to their sedative effects.
#12
Which factor does NOT affect how alcohol affects an individual's ability to drive?
Hair color
ExplanationHair color does not affect how alcohol affects driving ability; factors such as weight, tolerance, and metabolism do.
#13
Which of the following statements about drug-impaired driving is FALSE?
Drugged driving is less dangerous than drunk driving
ExplanationContrary to the statement, drugged driving is equally dangerous as drunk driving, posing significant risks to the driver, passengers, and others on the road.
#14
In most cases, what is the first sense impaired by alcohol consumption?
Judgment
ExplanationIn most cases, judgment is the first sense impaired by alcohol consumption, leading to impaired decision-making and risk assessment.
#15
Which of the following statements about marijuana and driving is TRUE?
Marijuana impairs driving, especially when combined with alcohol
ExplanationMarijuana impairs driving, particularly when combined with alcohol, affecting coordination, reaction time, and judgment.
#16
In which of the following situations should a driver never attempt to operate a vehicle?
After consuming recreational drugs
ExplanationA driver should never attempt to operate a vehicle after consuming recreational drugs, as they impair cognitive and motor functions, increasing the risk of accidents.