Traffic Supervisor Exam Questions with verified Answers For
2026 Graded To Pass !!!
When unacceptable Traffic Control Devices are found in the work zone, they must be removed
and replaced within ____ hours of notification
A. 8
B. 4
C. 6
D. 12
12
If less than 90% of the pixels per character are operating in the PCMS, it is considered a
marginal quality standard.
A. True
B. False
False
What is the minimum merging taper length for one 12' lane closure on 55 MPH Multi-Lane
Divided Highway?
A. 660
B. 550
C. 1020
D. 700
660
Spalls greater than ___ on temporary barrier is considered unacceptable.
A. 0.5"
B. 1"
C. 1.5"
D. 6"
1.5"
How many drums are needed in a 1,200 FT Tangent Section on a 65 MPH Highway?
A. 25
B. 10
C. 16
Page 1 of 58
,D. 40
10
While adjusting Sign spacing to avoid conflict with existing signs, ____ is the minimum spacing
to existing signs for speeds of 45 MPH or less.
A. 100'
B. 200'
C. 300'
D. 400'
200'
A minimum of __ drums shall be used to close upstream shoulder.
A. 5
B. 8
C. 10
D. We don't need to close the shoulder while we are closing the lane.
5
When cones are substituted for drums at nighttime closer, what is the maximum cone spacing?
A. 20'
B. 30'
C. 40'
D. 50'
40'
What type of flashing warning lights are required when there is a nighttime lane closer?
A. ROAD WORK AHEAD
B. LANE CLOSED AHEAD
C. A & B
D. NONE OF THE ABOVE
ROAD WORK AHEAD
&
Page 2 of 58
,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
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
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
Lane Change Ahead
&
Watch for Stopped Traffic
&
Road Work Ahead
Is the advisory speed plaque used in all traffic zones?
A. True
B. False
False
When the approach speed limit is 40 mph or less, 36" warning signs may be used.
A. True
B. False
Page 3 of 58
, True
Road Work Ahead signs shall be provided on entrance ramps or roadways entering the work
limits.
A. True
B. False
True
End Road Work signs are only required for lane closures of more than ______ day.
A. 1
B. 2
C. 3
D4
1
Is a shadow vehicle used in all traffic zones?
A. True
B. False
False
The shadow vehicle is occupied whenever workers are in the work area.
A. True
B. False
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
All of the above
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"
Page 4 of 58
2026 Graded To Pass !!!
When unacceptable Traffic Control Devices are found in the work zone, they must be removed
and replaced within ____ hours of notification
A. 8
B. 4
C. 6
D. 12
12
If less than 90% of the pixels per character are operating in the PCMS, it is considered a
marginal quality standard.
A. True
B. False
False
What is the minimum merging taper length for one 12' lane closure on 55 MPH Multi-Lane
Divided Highway?
A. 660
B. 550
C. 1020
D. 700
660
Spalls greater than ___ on temporary barrier is considered unacceptable.
A. 0.5"
B. 1"
C. 1.5"
D. 6"
1.5"
How many drums are needed in a 1,200 FT Tangent Section on a 65 MPH Highway?
A. 25
B. 10
C. 16
Page 1 of 58
,D. 40
10
While adjusting Sign spacing to avoid conflict with existing signs, ____ is the minimum spacing
to existing signs for speeds of 45 MPH or less.
A. 100'
B. 200'
C. 300'
D. 400'
200'
A minimum of __ drums shall be used to close upstream shoulder.
A. 5
B. 8
C. 10
D. We don't need to close the shoulder while we are closing the lane.
5
When cones are substituted for drums at nighttime closer, what is the maximum cone spacing?
A. 20'
B. 30'
C. 40'
D. 50'
40'
What type of flashing warning lights are required when there is a nighttime lane closer?
A. ROAD WORK AHEAD
B. LANE CLOSED AHEAD
C. A & B
D. NONE OF THE ABOVE
ROAD WORK AHEAD
&
Page 2 of 58
,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
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
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
Lane Change Ahead
&
Watch for Stopped Traffic
&
Road Work Ahead
Is the advisory speed plaque used in all traffic zones?
A. True
B. False
False
When the approach speed limit is 40 mph or less, 36" warning signs may be used.
A. True
B. False
Page 3 of 58
, True
Road Work Ahead signs shall be provided on entrance ramps or roadways entering the work
limits.
A. True
B. False
True
End Road Work signs are only required for lane closures of more than ______ day.
A. 1
B. 2
C. 3
D4
1
Is a shadow vehicle used in all traffic zones?
A. True
B. False
False
The shadow vehicle is occupied whenever workers are in the work area.
A. True
B. False
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
All of the above
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"
Page 4 of 58
