Asphalt Pavement Actual Exam Questions with Elaborate Answers Already Graded A+

Asphalt Pavement Actual Exam Questions with Elaborate Answers Already Graded A+ 1. What is the single most important factor affecting the performance of asphalt pavements? - ANSWER Compaction 2. A full lot of super pave asphalt is what size? 1,000 tons 1,000 to 2000 tons 2000 to 4000 tons 1 days production - ANSWER 2000 to 4000 tons 3. Which is not typically used as an asphalt binder in fdot mix designs? PG 52-28 PG 58-22 PG 62-22 PG 76-22(PMA) PG 82-22 (PMA) - ANSWER PG 62-22 4. Who cuts the density cores used for verification testing? The verification technician The contractor The independent verification testing technician None of the above - ANSWER The contractor 5. What is the minimum compaction temperature determined in early research? - ANSWER 175°F, below which little density gain is achieved with additional compactive effort. 6. What is the time available for compaction? - ANSWER The time it takes for a mix to cool from laydown temperature to minimum compaction temperature. 7. What happens to the asphalt binder as the mix temperature decreases? - ANSWER The binder becomes more viscous and resistant to deformation, reducing air void reduction. 8. What is the impact of moisture on the cooling rate of asphalt layers? - ANSWER Moisture increases the cooling rate by turning water into steam, enhancing heat transfer. 9. What is the role of roller equipment in asphalt compaction? - ANSWER Rollers are used to maximize compactive effort and ensure the mat is compacted to the desired air void content. 10. What is the effect of internal friction and cohesion on asphalt compaction? - ANSWER Below the minimum compaction temperature, internal friction and cohesion increase, making it harder to achieve density. 11. A full lot is composed of 5 sublots and 4 cores per lot T/F - ANSWER False 12. What is the most important for consistent compaction of asphalt mix? The mix is hotter in temperature The mix is colder in temperature The mix is uniform in temperature Temperature of the mix does not affect compaction - ANSWER The mix is uniform in temperature 13. Referring to general stationing guidelines, R1 would be ____ than R2 Closer to centerline Closer to outside shoulder Closure to the inside shoulder Both A and C - ANSWER Both A and C 14. While using the rolling straightedge, if the needle goes in the red zone indicating an unacceptable high spot in the section, you then - ANSWER Mark the pavement where the needle first goes into the red zone and place another mark where the needle leaves the red zone and continue 15. For bridge approach slabs, the 15 foot manual straightedge should be set so ____ is on the bridge deck. 1 inch Exactly 1/2 of the straightedge The entire straightedge None of the above - ANSWER 1 inch 16. For the first transverse joint on a project place the ___ on the new pavement while overlapping the transverse joint by one inch. 4 foot level 15 foot manual straight edge Rolling straightedge All the above - ANSWER 15 foot manual straight edge 17. When calibrating to check the low side of the rolling straight edge: Place shims under the outer wheels Place the rolling straight edge on a surface that looks flat Place a 3/16 inch shin under each outside wheel, the gauge should read zero on both sides of the gauge Place shims under the center wheel - ANSWER Place a 3/16 inch shin under each outside wheel, the gauge should read zero on both sides of the gauge 18. When calibrating to check the high side of the rolling straight edge: Place shims under the outer wheels Place shims under the center wheel Place the rolling straight edge on a surface that looks flat Place a 3/16 inch shin under the center wheel. The gauge should read zero on both sides of the gauge. – ANSWER Place a 3/16 inch shim under the center wheel. The gauge should read zero on both sides of the gauge. 19. What do you need to know when manually checking the cross slope? The level length The lane width Height from the end of the level to pavement surface The diameter of the bubble in the level - ANSWER Level length and height from the end of level to pavement surface