SFST Exam 2026 | Latest Update 2026 | 100% Correct
Answers | Actual Exam Prep
1. In the San Diego SFST Field Validation Study, which test was determined to be
the most accurate in identifying a person with a BAC level of 0.08 percent or
higher?
One Leg Stand
Finger-to-Nose Test
Walk and Turn Test
Horizontal Gaze Nystagmus
2. Which of the following is not a clue of impairment during the walk-and-turn
test?
The driver keeps balance during instructions
Improper turn or steps off the line
Uses arms for balance or stops walking
Misses heel-to-toe or incorrect number of steps
3. The largest deterrent of drunk driving is?
Loss of Employment
Fear of Arrest
Public Humiliation
4. If a driver has a BAC of 0.08% and consumes alcohol at a rate that causes
their BAC to drop by 0.015% per hour, what would their BAC be after three
hours?
0.090%
, 0.075%
0.045%
0.060%
5. The walk-and-turn test has ___ observable clues
2
6
4
8
6. List the three primary Standardized Field Sobriety Tests (SFST) used for DUI
assessment.
WAT, OLS, FST
HGN, FST, BAC
HGN, OLS, BAC
HGN, OLS, WAT
7. If a driver is pulled over for suspected DUI and refuses to take a breath test,
what immediate consequence might they face under the Implied Consent
Law?
Mandatory community service
No consequences
A fine only
License suspension
, 8. Describe the effects of a BAC of .03 on a person's behavior and cognitive
functions.
At a BAC of .03, individuals may experience mild impairment of
judgment and coordination.
At a BAC of .03, individuals are typically unable to drive safely.
At a BAC of .03, individuals may exhibit severe motor skills impairment.
At a BAC of .03, individuals are likely to be completely sober.
9. Once a person reaches his or her peak BAC, it will drop at a rate of about _____
per hour.
0.010
0.025
0.015
10. To convict a person of a DUI violation, it is necessary to show ______ that all
the elements of the offense were present.
reasonable suspicion
reasonable expectation of privacy
beyond a reasonable doubt
referrals
11. What is the primary purpose of the Horizontal Gaze Nystagmus (HGN) test in
DUI assessments?
To determine the driver's age
To evaluate a driver's reaction time
To assess impairment due to alcohol consumption
Answers | Actual Exam Prep
1. In the San Diego SFST Field Validation Study, which test was determined to be
the most accurate in identifying a person with a BAC level of 0.08 percent or
higher?
One Leg Stand
Finger-to-Nose Test
Walk and Turn Test
Horizontal Gaze Nystagmus
2. Which of the following is not a clue of impairment during the walk-and-turn
test?
The driver keeps balance during instructions
Improper turn or steps off the line
Uses arms for balance or stops walking
Misses heel-to-toe or incorrect number of steps
3. The largest deterrent of drunk driving is?
Loss of Employment
Fear of Arrest
Public Humiliation
4. If a driver has a BAC of 0.08% and consumes alcohol at a rate that causes
their BAC to drop by 0.015% per hour, what would their BAC be after three
hours?
0.090%
, 0.075%
0.045%
0.060%
5. The walk-and-turn test has ___ observable clues
2
6
4
8
6. List the three primary Standardized Field Sobriety Tests (SFST) used for DUI
assessment.
WAT, OLS, FST
HGN, FST, BAC
HGN, OLS, BAC
HGN, OLS, WAT
7. If a driver is pulled over for suspected DUI and refuses to take a breath test,
what immediate consequence might they face under the Implied Consent
Law?
Mandatory community service
No consequences
A fine only
License suspension
, 8. Describe the effects of a BAC of .03 on a person's behavior and cognitive
functions.
At a BAC of .03, individuals may experience mild impairment of
judgment and coordination.
At a BAC of .03, individuals are typically unable to drive safely.
At a BAC of .03, individuals may exhibit severe motor skills impairment.
At a BAC of .03, individuals are likely to be completely sober.
9. Once a person reaches his or her peak BAC, it will drop at a rate of about _____
per hour.
0.010
0.025
0.015
10. To convict a person of a DUI violation, it is necessary to show ______ that all
the elements of the offense were present.
reasonable suspicion
reasonable expectation of privacy
beyond a reasonable doubt
referrals
11. What is the primary purpose of the Horizontal Gaze Nystagmus (HGN) test in
DUI assessments?
To determine the driver's age
To evaluate a driver's reaction time
To assess impairment due to alcohol consumption
