Traffic Supervisor Exam Questions And
Correct Answers
Is a shadow vehicle used in all traffic zones?
A. True B. False CORRECT ANSWERS False
The shadow vehicle is occupied whenever workers are in the work area.
A. True B. False CORRECT ANSWERS 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 CORRECT ANSWERS 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" CORRECT ANSWERS 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" CORRECT ANSWERS 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" CORRECT ANSWERS 42"
When cones are substituted for drums at nighttime closer, what is the maximum cone spacing?
A. 20' B. 30' C. 40' D. 50' CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS Lane Change Ahead & Watch for Stopped Traffic & Road Work Ahead
Is the advisory speed plaque used in all traffic zones?
A. True B. False CORRECT ANSWERS False
When the approach speed limit is 40 mph or less, 36" warning signs may be used.
A. True B. False CORRECT ANSWERS True
Road Work Ahead signs shall be provided on entrance ramps or roadways entering the work limits.
A. True B. False CORRECT ANSWERS True End Road Work signs are only required for lane closures of more than ______ day.
A. 1 B. 2 C. 3 D 4 CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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. CORRECT ANSWERS 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 CORRECT ANSWERS 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. CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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' CORRECT ANSWERS 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' CORRECT ANSWERS 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' C. 605' D. 100' CORRECT ANSWERS 100'
Regarding temporary traffic control, what is a diversion?
A. Something to do while waiting for an asphalt truck. B. Routing traffic onto an existing roadway.
Correct Answers
Is a shadow vehicle used in all traffic zones?
A. True B. False CORRECT ANSWERS False
The shadow vehicle is occupied whenever workers are in the work area.
A. True B. False CORRECT ANSWERS 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 CORRECT ANSWERS 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" CORRECT ANSWERS 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" CORRECT ANSWERS 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" CORRECT ANSWERS 42"
When cones are substituted for drums at nighttime closer, what is the maximum cone spacing?
A. 20' B. 30' C. 40' D. 50' CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS Lane Change Ahead & Watch for Stopped Traffic & Road Work Ahead
Is the advisory speed plaque used in all traffic zones?
A. True B. False CORRECT ANSWERS False
When the approach speed limit is 40 mph or less, 36" warning signs may be used.
A. True B. False CORRECT ANSWERS True
Road Work Ahead signs shall be provided on entrance ramps or roadways entering the work limits.
A. True B. False CORRECT ANSWERS True End Road Work signs are only required for lane closures of more than ______ day.
A. 1 B. 2 C. 3 D 4 CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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. CORRECT ANSWERS 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 CORRECT ANSWERS 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. CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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 CORRECT ANSWERS 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' CORRECT ANSWERS 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' CORRECT ANSWERS 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' C. 605' D. 100' CORRECT ANSWERS 100'
Regarding temporary traffic control, what is a diversion?
A. Something to do while waiting for an asphalt truck. B. Routing traffic onto an existing roadway.
