CTQP Cheat Sheet 2026

The 30 highest-yield CTQP facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is the primary purpose of proof rolling a completed subgrade prior to base course placement? → To identify localized soft or unstable areas not detected by density testing
2. What is 'raveling' in an asphalt pavement surface? → Progressive loss of aggregate particles from the pavement surface
3. During a proctor compaction test, if the soil is too wet and the moisture-density curve shows density decreasing, the technician should: → Air-dry the soil and retest at lower moisture contents
4. The Performance Grade (PG) binder specification system is based primarily on: → Pavement expected service temperature range and traffic loading
5. What document should an inspector review before pile driving begins to understand subsurface conditions? → The geotechnical investigation report and boring logs
6. What is the inspector's responsibility during pipe trench backfill operations? → To verify compaction lifts, material, and density testing around and over the pipe
7. When inspecting a prestressed concrete beam, a rust stain running perpendicular to the beam axis most likely indicates: → Corrosion of prestressing strand
8. What does 'SP-9.5' or 'SP-12.5' designate in FDOT Superpave mix naming? → The nominal maximum aggregate size in millimeters
9. A longitudinal joint in an asphalt pavement is best described as a joint that runs: → Parallel to the direction of traffic
10. Which type of curing method is generally considered most effective for concrete flatwork? → Burlap kept continuously wet with water
11. Which of the following sets for the Department's methods and Procedures for preparing and checking final estimates? → Preparation and Documentation Manual
12. At what point during pile driving must the inspector notify the engineer? → When a pile reaches refusal before achieving the minimum tip elevation
13. When a flagging operation is required at night, what additional safety measure must flaggers use beyond standard daytime requirements? → Wear Class 3 high-visibility garments and use illuminated wands or flashlights
14. What is a 'settlement monument' used for in earthwork inspection? → A device installed to monitor vertical movement of embankments over time
15. When fabricating concrete test cylinders, how soon must they be transported to the lab after initial curing per ASTM C31? → Between 16 and 32 hours after casting
16. What are 'drums' or 'channelizing devices' used for in a work zone? → To delineate the edge of the travel lane and guide traffic through the work zone
17. What minimum percent compaction is typically required for embankment fill under Florida Department of Transportation specifications? → 95%
18. What type of roller is used for final compaction (finish rolling) of an asphalt mat? → Steel-wheel static roller or vibratory roller in static mode
19. Which soil classification system is most commonly referenced in FDOT earthwork specifications? → AASHTO Soil Classification System
20. What is the required inspection frequency for a temporary traffic control setup on an active FDOT project? → Daily inspection by the inspector and documented on the daily work report
21. A bridge bearing that exhibits 'frozen' condition (no movement despite temperature changes) is most likely to cause which secondary defect? → Unintended longitudinal forces transferred to the substructure
22. Which instrument is most appropriate for measuring the depth of a surface crack in a concrete bridge component during a field inspection? → Ultrasonic pulse velocity (UPV) device
23. Under FDOT CTQP guidelines, what is the minimum required frequency for routine in-depth inspections of highway bridges? → Every two years
24. What method is used to test newly installed storm drain pipe for joint integrity and alignment? → Mandrel testing and visual inspection or video inspection
25. When inspecting a French drain (subsurface perforated pipe system), which finding indicates the system is failing? → Geotextile filter fabric is clogged and saturated soil remains near the surface
26. What does the Los Angeles Abrasion test (AASHTO T 96) measure for coarse aggregates? → The resistance of coarse aggregate to degradation by abrasion and impact
27. What is the purpose of the breakdown roller in the asphalt compaction sequence? → To provide the initial primary compaction immediately behind the paver
28. What does 'Level of Service' or 'LOS' refer to in FDOT asphalt density acceptance? → The statistical acceptance procedure used to evaluate lot density results
29. A field inspector observes the vibrator being inserted more than 18 inches apart. What is the likely consequence? → Under-consolidation leaving unvibrated zones
30. Which of the following is NOT officially considered to be a "Contract Document"? → Both B and D