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TRAFFIC SUPERVISOR EXAM ALL QUESTIONS AND
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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 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" - CORRECT 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" - CORRECT 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' - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT ANSWER-Lane Change Ahead & Watch for Stopped Traffic &
C. Divide D. Multiplying - CORRECT 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 - CORRECT 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. - CORRECT 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 - CORRECT 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. - CORRECT ANSWERAdvance 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 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 - CORRECT ANSWER-Aligning taper The formula for taper length on expressways with a speed limit of 65mph is which of the following? A. L = (WxS2)/ B. L = WxS C. L = W2xS D. L = (S2x60)/W - CORRECT 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' - CORRECT 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' - CORRECT ANSWER-285.8'
Flagger should have training in which of the following? A. Safe traffic control procedures and social studies. B. Safe traffic control procedures and asphalt calculations. C. Communication equipment and techniques for dealing with the public. D. Techniques for dealing with the public and safe traffic control procedures. - CORRECT ANSWERTechniques for dealing with the public and safe traffic control procedures. Post mounted signs for use in urban areas must be how high to the bottom of the sign? A. 8' B. 5' C. 7' D. 12' - CORRECT ANSWER-7' Post mounted signs used in a rural area must be how far from the edge of the road? A. 5' to 6' B. 5' to 12' C. 2' to 7' D. 6' to 12' - CORRECT ANSWER-6' to 12' Which description would best fit regularity signs? A. They are used to warn motorist of hazard. B. They are always diamond shaped. C. They are used to inform motorists of traffic laws. D. They may be red and white or orange and black. - CORRECT ANSWER-They are used to inform motorists of traffic laws.
Who may approve the use of regulatory signs? A. The project superintendent. B. The public agency with jurisdiction over the project. C. The local law enforcement officials. D. They require no special approval. - CORRECT ANSWER-The public agency with jurisdiction over the project. What are the two approved sizes for diamond shaped warning signs? A. 36" and 54" B. 28" and 48" C. 24" and 36" D. 36" and 48" - CORRECT ANSWER-36" and 48" Which description would best fit guide signs? A. They provide motorists with information to help them through a work zone. B. They warn motorists of hazard. C. They provide information on places of interest. D. They provide motorists information on the local traffic laws. - CORRECT ANSWER-They provide motorists with information to help them through a work zone. Which of the following best describes the main function of flashing arrow panels? A. They pint motorists to the exit ramp. B. They direct motorists to merge out of a closed lane. C. They direct motorists around a detour route. D. They warn motorist of a hazard. - CORRECT ANSWER-They direct motorists to merge out of a closed lane.
D. Concrete barriers should never be used to create a merging taper on an expressway. - CORRECT ANSWER-Concrete barriers should never be used to create a merging taper on an expressway. Which type of project will require temporary pavement markings? A. Mobile operations B. Short term stationary operations C. Long term stationary operations D. Short duration operations - CORRECT ANSWER-Long term stationary operations Which type of work occupies the same location for less than One hour? A. Mobile work B. Intermediate term stationary C. Short term stationary D. Short duration - CORRECT ANSWER-Short duration What would the sign spacing be for a work zone on a rural two-lane two-way road with a speed limit of 55mph? A. 2640', 1500', 1000' B. 500', 500', 500' C. 350', 350', 350' D. Far enough apart to be seen by motorists - CORRECT ANSWER-500', 500', 500' What is the maximum spacing for channelizing devices used in a taper use on a multi-lane roadway? A. 50' B. There is no set spacing.
C. 20'
D. The same number of feet as the posted speed limit. - CORRECT ANSWER-The same number of feet as the posted speed limit. When closing two lanes of a multi-lane expressway, what is the length of the recovery zone between the two tapers? A. 1000' B. Equal to the length of one of the tapers. C. Equal to two times the length of one of the tapers. D. One mile - CORRECT ANSWER-Equal to two times the length of one of the tapers. When crossing traffic over the median to close one side of and expressway, the traffic will need to be controlled on which side first? A. The closed side. B. The open side. C. Both controlled at the same time. D. It doesn't matter which side is controlled first. - CORRECT ANSWER-The open side When a downstream taper is used, what are the proper length and device spacing? A. L and 20' B. 1/2 L and 50' C. 100' and 20' D. 100' and 50' - CORRECT ANSWER-100' and 20' The taper length for a shifting taper is L for 50 MPH and over, what should it be for speeds less than 50 MPH?
A. 600'
B. 720'
C. 800'
D. 500' - CORRECT ANSWER-720'
What formula would you use to figure the length of a merging taper on a 35 mph street? A. L =WxS B. L = W square x S C. L = W square x S / 60 D. L = S square x W /60 - CORRECT ANSWER-L = S square x W / Lane lines on expressway/freeway is? A. 20: B. 10: C. 30: D. 10:50 - CORRECT ANSWER-10: What is the minimal length of a piece of barrier wall? A. 12' B. 5' C. 7' D. 10' - CORRECT ANSWER-10' What is the length of a merging taper be if the speed limit was 35 mph and the lane was 10' wide?
A. 210'
B. 205'
C. 300'
D. 500' - CORRECT ANSWER-205'
According to the OMUTCD, what is traffic control device spacing on a 65 mph road in a merging taper? A. Same as speed limit B. Double speed limit C. 40' apart D. 70' apart - CORRECT ANSWER-Same as speed limit When using delineation panels, what is the maximum pacing of the panels? A. 5' B. 10' C. 15' D. 20' - CORRECT ANSWER-10' What is the maximum spacing of barrier reflectors on the barrier wall? A. 10' B. 24' C. 40' D. 50' - CORRECT ANSWER-50' Object marker spacing on the barrier wall shall not exceed what distance? A. 24'
B. November-July C. October-March D. September-March - CORRECT ANSWER-October-March When placing RPMs along edge lines what is the maximum spacing from outside of the edge lines? A. 6" B. 4" C. 3" D. 2" - CORRECT ANSWER-4" Rpm offset along channelizing lines shall be no more than ____ to the left? A. 4" B. 3" C. 2" D. 1" - CORRECT ANSWER-1" The alteration between object markers and barriers reflectors is to be what spacing? A. 50' B. 40' C. 30' D. 25' - CORRECT ANSWER-25' Glare screen shall be designed using a _____ degree cut off angle of the paddle based on the tangent? A. 45 degree B. 30 degree
C. 20 degree D. 10 degree - CORRECT ANSWER-20 degree What is the portable barrier wall minimum flare rate for 65 mph zone? A. 12: B. 65: C. 19: D. 8:1 - CORRECT ANSWER-19: What type of nut goes on hook and loop barrier wall pin? A. Lock Nut B. Hexagonal Nut C. Round Nut D. None of the above. - CORRECT ANSWER-Hexagonal Nut The recovery area at barrier wall must have a _____ or flatter area and be free of workers or hazards? A. 5: B. 3: C. 2: D. 7:1 - CORRECT ANSWER-3: When using Uneven Lane or Low Shoulder signs, they must be placed ____ feet in advanced of condition on all intersection's entrances? A. 500' B. 750'
B. False - CORRECT ANSWER-False All cones and drums should have a minimum offset from the edge of the traveled lanes of ___? A. 3' B. 4' C. 2 1/2' D. 1 1/2' - CORRECT ANSWER-1 1/2' On a divided expressway what is the maximum spacing of drums at 55 mph in the tangent? A. 100' B. 90' C. 50' D. 80' - CORRECT ANSWER-80' On a divided expressway, what is the maximum spacing of drums the tangent for a 70-mph road? A. 100 B. 70 C. 120 D. 80 - CORRECT ANSWER- 120 What is the minimum lane width on an expressway using PCB that must be maintained? A. 12' B. 11' C.10' D.9' - CORRECT ANSWER-10'
What is the minimum shoulder taper rate for 60 mph road? A. 20: B. 17: C. 15: D. 60:1 - CORRECT ANSWER-20: What is the minimum buffer length for a 70-mph road? A. 500' B. 425' C. 730' D. 155' - CORRECT ANSWER-730' How far away does a temporary traffic light need to be from a stop bar on bidirectional road? A. 60' B. 75' C. 100' D. 120 ' - CORRECT ANSWER-75' Photo strobe lights LED warning light must be seen at least _____ away? A. 100' B. 200' C. 1000' D. 1 mile - CORRECT ANSWER-100'
