Traffic Law Final Exam questions with
100% complete solutions 2025/2026
All states have a provision in the DUI and implied consent laws making it illegal to drive a motor
vehicle with a prescribed BAC level of 0.08 percent or higher. This provision is referred to as -
correct answer ✔✔The illegal per se LAW
Since distances on a typical crash diagram are usually expressed in feet, it may be necessary to
convert miles per hour (speed) to feet per second (velocity). Using the conversion factor of 1.47,
a vehicle traveling at 30 miles per hour would be traveling at __________ feet per second.` -
correct answer ✔✔44.1`
Most experts agree that generating an arrest ratio or one arrest for every _______ violations
will produce a moderately effective deterrence effect. - correct answer ✔✔500
Original research on the Walk-and-Turn test shows that should the subject exhibit two or more
clues or fail to complete the test, the subject's BAC should be considered to be above
_________ percent and that this criterion has an accuracy level of ______ percent - correct
answer ✔✔0.10, 68
In the 12-step DRE protocol, one of the very first things the DRE officer will do is - correct
answer ✔✔Check the BAC level of the suspect
Which of the following is not a disadvantage of using PBT instruments as part of field sobriety
testing - correct answer ✔✔Normal characteristics of breath samples such as halitosis and food
odors can have an adverse effect on PBT readings
Which of the following is not a post-stop cue of impairment - correct answer ✔✔Leaning on the
vehicle
, When rollover, head-on, pedestrian, and bicycle crashes are combined, they account for
approximately _____ percent of all crashes and approximately _______ percent of all traffic-
related fatalities - correct answer ✔✔3, 25
Which of the following common types of collisions is responsible for the highest percentage of
fatal traffic crashes? - correct answer ✔✔Run off road
The LAPD study of the DRE program also showed that only ________ percent of drivers who
were suspected of using drugs, had BAC levels equal to or greater that 0.10 percent - correct
answer ✔✔3.7
Finger tapping and stretching one's neck from side-to-side is known as a (an) - correct answer
✔✔Adaptor
The device known as an accelerometer is typically used by police agencies to - correct answer
✔✔Electronically calibrate the coefficient of friction
Regarding urine testing, which of the following statements is least accurate - correct answer
✔✔Urine testing is not generally used to determine BAC because it is the most expensive
method of alcohol testing
Consensual encounters usually result from police officers checking out situations where the
circumstances do not rise to the level of a Terry stop. Which of the following is not an example
of a consensual encounter? - correct answer ✔✔Checking out a suspicious individual complaint
made by a citizen
Which of the following statements is accurate? - correct answer ✔✔Dr. Robert Borkenstein, a
professor at Indiana University developed an instrument which used chemical oxidation and
photometry to measure alcohol concentration
100% complete solutions 2025/2026
All states have a provision in the DUI and implied consent laws making it illegal to drive a motor
vehicle with a prescribed BAC level of 0.08 percent or higher. This provision is referred to as -
correct answer ✔✔The illegal per se LAW
Since distances on a typical crash diagram are usually expressed in feet, it may be necessary to
convert miles per hour (speed) to feet per second (velocity). Using the conversion factor of 1.47,
a vehicle traveling at 30 miles per hour would be traveling at __________ feet per second.` -
correct answer ✔✔44.1`
Most experts agree that generating an arrest ratio or one arrest for every _______ violations
will produce a moderately effective deterrence effect. - correct answer ✔✔500
Original research on the Walk-and-Turn test shows that should the subject exhibit two or more
clues or fail to complete the test, the subject's BAC should be considered to be above
_________ percent and that this criterion has an accuracy level of ______ percent - correct
answer ✔✔0.10, 68
In the 12-step DRE protocol, one of the very first things the DRE officer will do is - correct
answer ✔✔Check the BAC level of the suspect
Which of the following is not a disadvantage of using PBT instruments as part of field sobriety
testing - correct answer ✔✔Normal characteristics of breath samples such as halitosis and food
odors can have an adverse effect on PBT readings
Which of the following is not a post-stop cue of impairment - correct answer ✔✔Leaning on the
vehicle
, When rollover, head-on, pedestrian, and bicycle crashes are combined, they account for
approximately _____ percent of all crashes and approximately _______ percent of all traffic-
related fatalities - correct answer ✔✔3, 25
Which of the following common types of collisions is responsible for the highest percentage of
fatal traffic crashes? - correct answer ✔✔Run off road
The LAPD study of the DRE program also showed that only ________ percent of drivers who
were suspected of using drugs, had BAC levels equal to or greater that 0.10 percent - correct
answer ✔✔3.7
Finger tapping and stretching one's neck from side-to-side is known as a (an) - correct answer
✔✔Adaptor
The device known as an accelerometer is typically used by police agencies to - correct answer
✔✔Electronically calibrate the coefficient of friction
Regarding urine testing, which of the following statements is least accurate - correct answer
✔✔Urine testing is not generally used to determine BAC because it is the most expensive
method of alcohol testing
Consensual encounters usually result from police officers checking out situations where the
circumstances do not rise to the level of a Terry stop. Which of the following is not an example
of a consensual encounter? - correct answer ✔✔Checking out a suspicious individual complaint
made by a citizen
Which of the following statements is accurate? - correct answer ✔✔Dr. Robert Borkenstein, a
professor at Indiana University developed an instrument which used chemical oxidation and
photometry to measure alcohol concentration
