TRAFFIC SUPERVISOR EXAM
QUESTIONS AND ANSWERS 100% PASS
2026/2027
Is a shadow vehicle used in all traffic zones?
A. True
B. False - ANS False
The shadow vehicle is occupied whenever workers are in the work area.
A. True
B. False - ANS False
What class one light is the shadow vehicle equipped with?
A. Flashing Yellow Light
B. Oscillating Yellow Light
C. Yellow Strobe Light
D. All of the above - ANS All of the above
When may cones be substituted for drums?
A. Daytime traffic control minimum height 18"
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,B. Daytime traffic control minimum height 28"
C. Daytime traffic control minimum height 36"
D. Daytime traffic control minimum height 42" - ANS Daytime traffic control minimum height
28"
When may cones be substituted for drums?
A. Daytime traffic control minimum height 18"
B. Daytime traffic control minimum height 28"
C. Daytime traffic control minimum height 36"
D. Daytime traffic control minimum height 42" - ANS Daytime traffic control minimum height
28"
When cones are substituted for drums for nighttime closers, what is the minimum cone height
requirement?
A. 18"
B. 28"
C. 36"
D. 42" - ANS 42"
When cones are substituted for drums at nighttime closer, what is the maximum cone spacing?
A. 20'
B. 30'
C. 40'
D. 50' - ANS 40'
What type of flashing warning lights are required when there is a nighttime lane closer?
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,A. ROAD WORK AHEAD
B. LANE CLOSED AHEAD
C. A & B
D. NONE OF THE ABOVE - ANS ROAD WORK AHEAD
&
LANE CLOSED AHEAD
If there is a lane closure of greater than three days, what is required?
A. Work zone dotted lines, 4' in length separated by 10' gaps, shall be provided to identify the
merge.
B. The appropriate color work zone edge lines shall be applied along the taper and tangent
sections.
C. All the above
D. None of the above - ANS The appropriate color work zone edge lines shall be applied along
the taper and tangent sections.
Work zone pavement marking that conflict with final traffic lanes shall be temporary paint.
A. True
B. False - ANS False
What are the extra advance warning signs?
A. Lane Close Ahead
B. Watch for Stopped Traffic
C. Road Work Ahead
D. All the above - ANS Lane Change Ahead
&
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, Watch for Stopped Traffic
&
Road Work Ahead
Is the advisory speed plaque used in all traffic zones?
A. True
B. False - ANS False
When the approach speed limit is 40 mph or less, 36" warning signs may be used.
A. True
B. False - ANS True
Road Work Ahead signs shall be provided on entrance ramps or roadways entering the work
limits.
A. True
B. False - ANS True
End Road Work signs are only required for lane closures of more than ______ day.
A. 1
B. 2
C. 3
D 4 - ANS 1
Sign spacing should be adjusted to avoid conflict with existing signs, minimum spacing to
existing signs shall be 200' for speeds of 45 mph or less and a minimum of 400' for speeds 50
mph or greater.
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QUESTIONS AND ANSWERS 100% PASS
2026/2027
Is a shadow vehicle used in all traffic zones?
A. True
B. False - ANS False
The shadow vehicle is occupied whenever workers are in the work area.
A. True
B. False - ANS False
What class one light is the shadow vehicle equipped with?
A. Flashing Yellow Light
B. Oscillating Yellow Light
C. Yellow Strobe Light
D. All of the above - ANS All of the above
When may cones be substituted for drums?
A. Daytime traffic control minimum height 18"
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,B. Daytime traffic control minimum height 28"
C. Daytime traffic control minimum height 36"
D. Daytime traffic control minimum height 42" - ANS Daytime traffic control minimum height
28"
When may cones be substituted for drums?
A. Daytime traffic control minimum height 18"
B. Daytime traffic control minimum height 28"
C. Daytime traffic control minimum height 36"
D. Daytime traffic control minimum height 42" - ANS Daytime traffic control minimum height
28"
When cones are substituted for drums for nighttime closers, what is the minimum cone height
requirement?
A. 18"
B. 28"
C. 36"
D. 42" - ANS 42"
When cones are substituted for drums at nighttime closer, what is the maximum cone spacing?
A. 20'
B. 30'
C. 40'
D. 50' - ANS 40'
What type of flashing warning lights are required when there is a nighttime lane closer?
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,A. ROAD WORK AHEAD
B. LANE CLOSED AHEAD
C. A & B
D. NONE OF THE ABOVE - ANS ROAD WORK AHEAD
&
LANE CLOSED AHEAD
If there is a lane closure of greater than three days, what is required?
A. Work zone dotted lines, 4' in length separated by 10' gaps, shall be provided to identify the
merge.
B. The appropriate color work zone edge lines shall be applied along the taper and tangent
sections.
C. All the above
D. None of the above - ANS The appropriate color work zone edge lines shall be applied along
the taper and tangent sections.
Work zone pavement marking that conflict with final traffic lanes shall be temporary paint.
A. True
B. False - ANS False
What are the extra advance warning signs?
A. Lane Close Ahead
B. Watch for Stopped Traffic
C. Road Work Ahead
D. All the above - ANS Lane Change Ahead
&
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, Watch for Stopped Traffic
&
Road Work Ahead
Is the advisory speed plaque used in all traffic zones?
A. True
B. False - ANS False
When the approach speed limit is 40 mph or less, 36" warning signs may be used.
A. True
B. False - ANS True
Road Work Ahead signs shall be provided on entrance ramps or roadways entering the work
limits.
A. True
B. False - ANS True
End Road Work signs are only required for lane closures of more than ______ day.
A. 1
B. 2
C. 3
D 4 - ANS 1
Sign spacing should be adjusted to avoid conflict with existing signs, minimum spacing to
existing signs shall be 200' for speeds of 45 mph or less and a minimum of 400' for speeds 50
mph or greater.
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