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A comprehensive set of questions and answers for the texas department of public safety's qualified manager exam, focusing on traffic control. it covers various aspects of traffic management, including signage, lane closures, taper lengths, and work zone safety. the detailed questions and answers make it a valuable study resource for prospective qualified managers.
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Is a shadow vehicle used in all traffic zones? A. True B. False - ansFalse The shadow vehicle is occupied whenever workers are in the work area. A. True B. False - ansFalse 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 - ansAll 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" - ansDaytime 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" - ansDaytime 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" - ans42" When cones are substituted for drums at nighttime closer, what is the maximum cone spacing? A. 20' B. 30' C. 40' D. 50' - ans40' What type of flashing warning lights are required when there is a nighttime lane closer?
D. NONE OF THE ABOVE - ansROAD 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 - ansThe 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 - ansFalse What are the extra advance warning signs? A. Lane Close Ahead B. Watch for Stopped Traffic C. Road Work Ahead D. All the above - ansLane Change Ahead & Watch for Stopped Traffic & Road Work Ahead Is the advisory speed plaque used in all traffic zones? A. True B. False - ansFalse When the approach speed limit is 40 mph or less, 36" warning signs may be used. A. True B. False - ansTrue Road Work Ahead signs shall be provided on entrance ramps or roadways entering the work limits. A. True B. False - ansTrue
D. Transition area, advanced warning area, pedestrian area and buffer zone. - ansAdvance 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 - ansLEFT 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 - ansAligning 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 - ansL = 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' - ans720' 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' - ans285.8' 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' - ans100' 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. C. Routing traffic onto a temporary roadway. D. Keeping the inspector's attention off of a mistake. - ansRouting traffic onto a temporary roadway Which of the following is NOT an acceptable method of one-lane two-way traffic control? A. Flag transfer method B. Motorist option method C. Direct flagger communication method D. Pilot car method - ansMotorist option method Which of the following is one of the things that should be considered to improve worker safety? A. Reducing the speed through work zones. B. Making sure that all workers carry two-way radios. C Providing workers with extra coffee in the morning. D. Using cones instead of concrete barriers whenever possible. - ansReducing the speed through work zones 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. - ansTechniques 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' - ans7' Post mounted signs used in a rural area must be how far from the edge of the road?
D. They warn motorist of a hazard. - ansThey direct motorists to merge out of a closed lane. How must all channelizing devices with the exception of barricades and concrete barriers be constructed? A. So that they do not require any external ballast. B. To be as sturdy as possible to deflect errant vehicles. C. So that they perform in a predictable manner when struck by a vehicle. D. So they will bounce back into position even if hit with a truck. - ansSo that they perform in a predictable manner when struck by a vehicle. Which size of cone is restricted to use on low speed, low volume roads? A. 36" cones B. 48" cones C. 28" cones D.18" cones - ans18" cones For what reason might you opt to use vertical panels in place of cones or drums? A. They are more visible to motorists. B. They provide a more substantial barrier when separating two opposing lanes of traffic. C. They are more suitable when space is restricted. D. They should never be used in place of cones or drums. - ansThey are more suitable when space is restricted. When should concrete barriers be used to create a merging taper on an expressway? A. When there is a high volume of truck traffic. B. When the project will take over two months to complete. C. When workers are working very close to the road. D. Concrete barriers should never be used to create a merging taper on an expressway. - ansConcrete 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 - ansLong 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 - ansShort 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 - ans500', 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. - ansThe 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 - ansEqual 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. - ansThe open side When a downstream taper is used, what are the proper length and device spacing?
D. 500' - ans720' 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 - ansL = S square x W / Lane lines on expressway/freeway is? A. 20: B. 10: C. 30: D. 10:50 - ans10: What is the minimal length of a piece of barrier wall? A. 12' B. 5' C. 7' D. 10' - ans10' 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' - ans205' 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 - ansSame as speed limit When using delineation panels, what is the maximum pacing of the panels? A. 5'
D. 20' - ans10' What is the maximum spacing of barrier reflectors on the barrier wall? A. 10' B. 24' C. 40' D. 50' - ans50' Object marker spacing on the barrier wall shall not exceed what distance? A. 24' B. 50' C. 30' D. 45' - ans50' When using reflectors, how high on the barrier wall must then be placed? A. 36" B. 20" C. 26" D. 24" - ans26" When using glare screens what type sheeting and maximum spacing are used? A. 50'/type R, Q, Z sheeting B. 40'/type G, R, Z sheeting C. 50'/ type G, H, J sheeting D. 25'/ type H, R, K sheeting - ans50'/ type G, H, J sheeting In transition area, what is the maximum spacing for RPM's on a lane shift or a crossover on a road that the speed is over 45 mph? A. 50' B. 25' C. 20' D. 10' - ans20' When is snow plowing season according to ODOT?
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. - ansHexagonal 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 - ans3: 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' C. 1000' D. 100' - ans750' What size cone are used for Night Time Zones on the expressway at night? A. 52" B. 48" C. 42" D. 28" - ans42" What is the size of the opening for an expressway for construction axes point total opening length _____ at minimum? A. 750' B. 900' C. 600' D. 100' - ans750' What is the maximum spacing allowed for advanced warning sign if you are unable to follow the standard spacing?
A. 2x B. 3x C. No Change Allowed D. 1.5x - ans1.5x Are you allowed to use cones for tapers at NIGHT? A. True B. False - ansFalse 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' - ans1 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' - ans80' 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 - ans What is the minimum lane width on an expressway using PCB that must be maintained? A. 12' B. 11' C.10' D.9' - ans10' What is the minimum shoulder taper rate for 60 mph road?
B. 30 feet C. 6 feet D. 20 feet - ans6 feet When equipment is stored at night along roadway. It must be delineated by drums spaced 5 feet apart. With Type A warning lights on them. A. True B. False. - ansTrue Road Closed signs on barricades must have what Type of warning light on them in intersections? A. Type A B. Type B C. Type C D. Type D - ansType B Grooved Pavement signs must be erected how far in advanced of grooved pavement in an intersection? A. 100 feet B. 200 feet C. 1000 feet D. 250 feet - ans250 feet When covering conflicting signs. The contractor must cover with an opaque cover that covers____. A. 50% of the sign B. 85% of the sign. C. the entire message. D. 75% of the sign - ansthe entire message. Repair & replace unsatisfactory line markings. At no additional cost to the state if the lines are at or under ___________ calendar days. A. 200 B. 365 C. 180 D. 120 - ans
How wide must an edge line and lane line be at minimum? A. 6" B. 4" C. 8" D. 5" - ans4" Arrow boards and portable changeable message signs must be delineated with reflective (conspicuity) tape. A. True B. False - ansTrue "Shoulder Drop Off " signs are put up. When the drop off next to the traveled road is ______ inches. A. 1 B. 2 C. 3 D. 4 - ans According to Ohio MUTCD what is the minimum height of the pole that holds the Stop/ Slow sign. A. 4 feet B. 7 feet C. 6.5 feet D. 5 feet - ans6.5 feet What is the minimum octagon face size of a stop slow paddle? A. 10 inches B. 15 inches C. 18 inches D. 20 inches - ans18 inches When are you allowed to use a 24x24 inch weighted flag to flag traffic according to MUTCD. A. Emergency situation. B. when you feel like it.
C. 6 feet. D. 7 feet - ans5 feet. What is the minimum height of a type 2 barricade and a drum. A. 24 inches. B. 36 inches. C. 48 inches. D. 60 inches. - ans36 inches. How long do you have to Replace an unacceptable traffic control device? A. 1 hour. B. 6 hours. C. 12 hours. D. 24 hours. - ans12 hours. What is the sign spacing for a 45 mph Rural roadway? A. 350 feet. B. 500 feet. C. 100 feet. D. 1000 feet. - ans500 feet A portable changeable message sign should be seen from a minimum of ________ during day or night. A. 2 miles. B. 1.5 miles. C. 1 mile. D. 0.5 miles. - ans0.5 miles When programming a message board. How messages should be shown on the board? A. no more than 1. B. no more than 2. C. no more than 3. D. no more than 4. - ansno more than 2 What is the maximum amount of time a message board. Should have to show the complete message to the motorist.
A. 12 seconds B. 10 seconds. C. 8 seconds. D. 6 seconds. - ans8 seconds Escort vehicles or delivery vehicles without proper strobe lights have to be approved by __________ before entering the project. A. superintendent. B. Forman. C. engineer. D. law enforcement. - ansengineer. Storage of equipment behind guard rail must be ________. A. 30 behind rail. B. 6 feet behind rail and not within 75 feet long by 20 foot wide. C. 6 feet behind rail and not within 75 feet by 30 feet wide. D. 6 foot behind by 30 feet. - ans6 feet behind rail and not within 75 feet long by 20 foot wide. How close can equipment be parked next to traveled roadway when stored. A. not less than 50 feet. B. not less than 30 feet. C. not less than 20 feet. D. not less 10 feet. - ansnot less than 30 feet. What is the minimum number of drums to be use for an upstream shoulder taper. A. 5 drums. B. 7 drums. C. 10 drums. D. 3 drums. - ans5 drums. What is the minimum and maximum length of a Flagging Taper. A. 20 to 50 feet. B. 50 to 100 feet. C. 40 to 120 feet. D. 100 to 300 feet. - ans50 to 100 feet.