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FDOT Asphalt Paving Level 2 Questions-Solved. A stringline set on or near the ground is used for which of the following controls. Alignment Which of the following are inspection points of the alignment control for the paver? located properly smooth- no bends follower directly above the line Which of the following ambient air temperature limits apply to wearing course? Below 50F Ambient air temperature limitations do not apply if the mixture is being placed: in lifts 2.75 inches thick or greater If rain begins on the project, which of the following materials may not be placed? material in a storage silo used as a storage silo The temperature of the mix as it leaves the plant can be determined from which of the following documents Haul ticket How many degrees can the mix cool from the minimum allowable plant temperature when checked in the truck and still be within specification requirements for placement? 25F In which of the following locations is the acceptance temperature of asphalt concrete obtained? in the paver hopper Where is the temperature of a truckload of mix recorded? haul ticket Which of the following conditions may create cold mix problems? Wind chill/cloud cover/coarse mix Mix held in hopper wings until it is significantly cooler than fresh mixture cna cause which of the following problems. Deteriorated pavement surface/ravel under traffic/increased maintenance cost Which of the following may be the result of overheating an asphalt concrete mixture? short pavement life/crack and ravel under traffic/hazard to the traveling public The automatic print out of the amount of mixture carried by an individual truck is the: haul ticket Transverse joints in succeeding lifts must be offset by at least 3 feet The vertical face of the transverse joint must be measured in several places before laydown operation begins to be sure it is at least plan thickness Which of the following materials is used as a bond breaker between the traffic ramp and the prepared surface at a transverse joint location? paper The shims placed beneath the screed on the compacted mat as operations begin at a transverse joint must be 25% of plan thickness If there is a dip at the joint after rolling, which of the following actions are required? Scarify the mat surface with a lute: add more mix; work it into the mat surface, then recompact the area with rollers Joints that occur between paving strips, roadway lanes or lanes and shoulders are called: longitudinal joints Longitudinal joints in the top lift must be offset by... 3 inches To prevent the longitudinal joint from interfering with the placement of lane marking, the longitudinal joint in the final wearing course lift may not fall at: centerline/lane line division Which of the following procedures is not to be allowed in the construction of a longitudinal joint? rake coarse aggregate from the mix at the joint Which of the following is an inspection point of a longitudinal joint? even with adjacent mat/no rough material/no opening or overlap between mats Which of the following mix deficiencies, if significant, can prohibit a truckload of mix from being placed ona project? segregation/contamination/nonuniform coating Which of the following deficiencies in the mat can lead to the material being removed and replaced at the contractor's expense? segregation/alignment deviations/variations in surface texture Which of the following, if handled improperly, can lead to shortened pavement life and decreased rideability? truck exchanges/joint construction/handwork Blue smoke rising from a load of mix may indicate; overheated mix A truckload of mix with lumps may be: to cool A truckload of mix that lies flat may be an indication of problems with: moisture content/asphalt cement content A mix that bubbles and pops probably has a problem with: excessive moisture If a truckload of mixture that the inspector feels is not satisfactory is placed, the inspector should: document the location of the questionable mixture and sample the load Which of the following could cause a mix to be tender? gap-grading/excessive coarse sand/excessive asphalt cement Lumps of fines and oxidized asphalt cement are a problem of: drum mixer plants What is the ultimate result of nonuniform coating of an asphalt concrete mixture? lack of bond/difficult to compact/segregation The practice of tossing or scattering mix onto the mat surface is known as: casting Which of the following correctly describes cast material? it will be segregated/it will be cooler than the surrounding material/it will not bond properly in the mat Scattering excess material (fluff or overlap) from the longitudinal joint area onto the uncompacted mat is considered: casting When handwork is required, the freshly placed material must be worked into the mat with the which of the following: tined side of the lute truck ends are marked by which of the following characteristics segregation/dip in surface/bump in surface Which of the following is common cause of a truck end? cool mix from hopper wings/segregated mix from end of truck discharge/failure to maintain a constant forward speed with the paver mix becomes finer/a lighter roller is used for breakdown rolling/the project moves from a roto-milled asphalt concrete surface over and unstabilized base The contractor should be encouraged to set a rolling pattern using: a nuclear or non-nuclear density device Which area of the pavement is always rolled first? transverse jaint If vibrations are not turned off on a vibratory roller when it reverses, which of the following may occur? damaging marks on the mat Maximum density should be achieved by which roller: breakdown Cracks running transverse to centerline behind the roller are an indication of: over rolling What type of roller must be used for intermediate rolling? the contractor determines which roller to use The main purpose of pneumatic rolling in the compaction operation is: to knit the surface of the mat together Which of the following rollers is used for finish rolling? Static steel wheel The estimated quantities of asphalt concrete shown on the plans are based on: 110|b./sq. yd. thickness The plan quantity of mix in pounds of asphalt concrete per square yard for a mat of specified thickness is known as: theoretical yield The quantity of asphalt concrete placed on the project in terms of pounds per square yard is known as: actual yield How many square yards are there of one linear foot of a paving strip 11 feet wide? 1.22 sq. yds. if 0.102 tons of mix should be placed per linear foot and each truck carries 20 tons, how many linear feet should be covered by each truckload? 196.1 LF Which of the following is a common cause of deviations in transverse surface finish? roller marks/ non-uniform grade/walking on uncompacted mat When grade is specified, final grade for the final wearing course can vary from plan grade by no more than 0.25 inches When asphalt concrete is paid for by the square or cubic yard, final acceptance measurements for dimensional tolerances will be made by: certified inspector What device is used to check longitudinal surface finish? inertial profiler On which of the following courses is there a payment adjustment for deviations in longitudinal surface tolerance? wearing course Who is responsible for obtaining cares for density testing? contractor Who is responsible for determining if a core is acceptable for testing? certified inspector Which of the following forms must be included with the pavement samples sent for density testing? Superpave Asphalt Concrete Roadway Report Who is responsible for filling the holes left in the pavement after cores are taken? contractor The data that is obtained by an inertial profiler is reported as: International Roughness Index (IRI) The inertial profiler utilizes which of the following components to obtain data laptop computer and non-contact sensors Which of the following certifications for inertial profilers is an acceptable equivalent to that of the department's Materials and Testing section? Texas Transportation Institute Certification for Lightweight Profilers When a freshly placed asphalt concrete mat must meet pre-existing grade, a...... is made tie-in When featheredging into a project, the paver should begin placing the mat at which of the following thicknesses? lateral pavement side of the trench If plan thickness for widening is 12", what should laydown thickness be? 15.6" Which of the following is the basis for payment for widening square yard What portion of the core from a widening project is tested for density? top 4" Which of the following are common deficiencies of asphalt concrete curbs? out of alignment, wrong cross-sectional shape, not bonding An area of pavement that is wider than its typical width is a..... transition Which of the following may be used to place asphalt concrete in transitions? screed extension, strike off assembly, box extension A curve that has been banked for safer driving is: superelevated Which one of the following devices can be used to continually change the cross slope of the screed while the asphalt concrete is being placed in a superelevated curve? dial device Which one of the following is the correct sequence for compacting a superelevated curve? Roll high side first, then move to low side and continue with overlapping passes to high side The location and type of construction signs required for a specific project can be found in: plans Which of the following is responsible for providing and installing construction signs? the contractor The construction of all signs and barricades used on a department project must conform to: Manual on Uniform Traffic Control Devices, Special Provisions, Standard Specifications Which of the following should be used to prevent vehicles from rolling on fresh mat, or interfering with construction equipment? moveable barricades, flaggers, cones Which of the following can be used by flaggers to ensure that traffic will only travel in one direction? 
