Traffic Supervisor Exam Questions And Correct
Answers
/. Is a shadow vehicle used in all traffic zones?
A. True
B. False - Answer-✅False
/.The shadow vehicle is occupied whenever workers are in the work area.
A. True
B. False - Answer-✅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 - Answer-✅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"
D. Daytime traffic control minimum height 42" - Answer-✅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" - Answer-✅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" - Answer-✅42"
,/.When cones are substituted for drums at nighttime closer, what is the maximum cone
spacing?
A. 20'
B. 30'
C. 40'
D. 50' - Answer-✅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 - Answer-✅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 - Answer-✅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 - Answer-✅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 - Answer-✅Lane Change Ahead
&
Watch for Stopped Traffic
&
Road Work Ahead
/.Is the advisory speed plaque used in all traffic zones?
A. True
B. False - Answer-✅False
/.When the approach speed limit is 40 mph or less, 36" warning signs may be used.
A. True
,B. False - Answer-✅True
/.Road Work Ahead signs shall be provided on entrance ramps or roadways entering
the work limits.
A. True
B. False - Answer-✅True
/.End Road Work signs are only required for lane closures of more than ______ day.
A. 1
B. 2
C. 3
D 4 - Answer-✅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.
A. True
B. False - Answer-✅True
/.The minimum acceptable length for the merge taper shall be determined by
_________ the width of the offset by the merge taper rate.
A. Subtracting
B. Adding
C. Divide
D. Multiplying - Answer-✅Multiplying
/.The tangent (recovery area) section between the two merge tapers should be 2 times
longer of the two merge tapers.
A. True
B. False - Answer-✅True
/.What is a fundamental principle of temporary traffic control?
A. To inconvenience motorists as much as possible so they will find another route.
B. To guide and direct motorists through or around the work area as efficiently as
possible.
C. To make traffic move as slow as possible.
D. All of the above are fundamental principles. - Answer-✅To guide and direct
motorists through or around the work area as efficiently as possible.
/.What needs to be done when work is suspended for any length of time?
A. Take down the ROAD WORK AHEAD sign
B. Cover up the END ROAD WORK sign
C. Erect a WORK SUSPENDED sign
D. Cover or remove the FLAGGER AHEAD sign - Answer-✅Cover or remove the
FLAGGER AHEAD sign
, /.What are the four zones of a work area?
A. Activity area, pedestrian area, termination area and equipment area.
B. Advance warning area, transition area, activity area and termination area.
C. Equipment area, termination area, activity area and transition area.
D. Transition area, advanced warning area, pedestrian area and buffer zone. - Answer-
✅Advance warning area, transition area, activity area and termination area.
/.Which of the following signs might you see in the advanced warning area?
A. END ROAD WORK
B. YIELD
C. EXIT OPEN
D. LEFT LANE CLOSED AHEAD - Answer-✅LEFT LANE CLOSED AHEAD
/.Which of the following is NOT a type of taper?
A. Shifting taper
B. Merging taper
C. Aligning taper
D. Downstream taper - Answer-✅Aligning taper
/.The formula for taper length on expressways with a speed limit of 65mph is which of
the following?
A. L = (WxS2)/60
B. L = WxS
C. L = W2xS
D. L = (S2x60)/W - Answer-✅L = WxS
/.What would the taper length be when closing a 12' lane on an expressway with a
speed limit of 60 mph?
A. 880'
B.780'
C.660'
D. 720' - Answer-✅720'
/.What would the taper length be when closing a 14' lane on a road with a speed limit of
35 mph?
A. 235.3'
B. 285.8'
C. 288.5'
D. 490.0' - Answer-✅285.8'
/.What would be the taper length when working on a road with 12' lanes and a speed
limit of 55 mph and you were using flagger control of traffic?
A. 660'
B. 780'
Answers
/. Is a shadow vehicle used in all traffic zones?
A. True
B. False - Answer-✅False
/.The shadow vehicle is occupied whenever workers are in the work area.
A. True
B. False - Answer-✅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 - Answer-✅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"
D. Daytime traffic control minimum height 42" - Answer-✅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" - Answer-✅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" - Answer-✅42"
,/.When cones are substituted for drums at nighttime closer, what is the maximum cone
spacing?
A. 20'
B. 30'
C. 40'
D. 50' - Answer-✅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 - Answer-✅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 - Answer-✅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 - Answer-✅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 - Answer-✅Lane Change Ahead
&
Watch for Stopped Traffic
&
Road Work Ahead
/.Is the advisory speed plaque used in all traffic zones?
A. True
B. False - Answer-✅False
/.When the approach speed limit is 40 mph or less, 36" warning signs may be used.
A. True
,B. False - Answer-✅True
/.Road Work Ahead signs shall be provided on entrance ramps or roadways entering
the work limits.
A. True
B. False - Answer-✅True
/.End Road Work signs are only required for lane closures of more than ______ day.
A. 1
B. 2
C. 3
D 4 - Answer-✅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.
A. True
B. False - Answer-✅True
/.The minimum acceptable length for the merge taper shall be determined by
_________ the width of the offset by the merge taper rate.
A. Subtracting
B. Adding
C. Divide
D. Multiplying - Answer-✅Multiplying
/.The tangent (recovery area) section between the two merge tapers should be 2 times
longer of the two merge tapers.
A. True
B. False - Answer-✅True
/.What is a fundamental principle of temporary traffic control?
A. To inconvenience motorists as much as possible so they will find another route.
B. To guide and direct motorists through or around the work area as efficiently as
possible.
C. To make traffic move as slow as possible.
D. All of the above are fundamental principles. - Answer-✅To guide and direct
motorists through or around the work area as efficiently as possible.
/.What needs to be done when work is suspended for any length of time?
A. Take down the ROAD WORK AHEAD sign
B. Cover up the END ROAD WORK sign
C. Erect a WORK SUSPENDED sign
D. Cover or remove the FLAGGER AHEAD sign - Answer-✅Cover or remove the
FLAGGER AHEAD sign
, /.What are the four zones of a work area?
A. Activity area, pedestrian area, termination area and equipment area.
B. Advance warning area, transition area, activity area and termination area.
C. Equipment area, termination area, activity area and transition area.
D. Transition area, advanced warning area, pedestrian area and buffer zone. - Answer-
✅Advance warning area, transition area, activity area and termination area.
/.Which of the following signs might you see in the advanced warning area?
A. END ROAD WORK
B. YIELD
C. EXIT OPEN
D. LEFT LANE CLOSED AHEAD - Answer-✅LEFT LANE CLOSED AHEAD
/.Which of the following is NOT a type of taper?
A. Shifting taper
B. Merging taper
C. Aligning taper
D. Downstream taper - Answer-✅Aligning taper
/.The formula for taper length on expressways with a speed limit of 65mph is which of
the following?
A. L = (WxS2)/60
B. L = WxS
C. L = W2xS
D. L = (S2x60)/W - Answer-✅L = WxS
/.What would the taper length be when closing a 12' lane on an expressway with a
speed limit of 60 mph?
A. 880'
B.780'
C.660'
D. 720' - Answer-✅720'
/.What would the taper length be when closing a 14' lane on a road with a speed limit of
35 mph?
A. 235.3'
B. 285.8'
C. 288.5'
D. 490.0' - Answer-✅285.8'
/.What would be the taper length when working on a road with 12' lanes and a speed
limit of 55 mph and you were using flagger control of traffic?
A. 660'
B. 780'
