| 1. |
In the field of pavement analysis and design, liquid, solid, and layer can be assume, with foundations being the most common. |
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Solid |
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Liquid |
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Layer |
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None of the above |
| 2. |
The effect of the soil beneath the composite pavement was modeled using a ____________ foundation. |
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Nishikawa |
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Winkler |
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Ingram |
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None of the above |
| 3. |
The picture in the figure above is an example of a ____________________.
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Stress gage reading |
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Strain gage reading |
| 4. |
The PCA/ACPA design method is technically an analysis procedure that allows for the prediction of the number of loads to fatigue failure for a given UTW configuration. The models used are mechanistic-empirical in nature.
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True |
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False |
| 5. |
The effect of interface condition is of particular interest in investigating the behavior of the composite pavement, as previous studies have shown that it has a significant effect on the behavior of. |
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the whitetopping pavement system |
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point to point interface elements |
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friction gap elements |
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none of the above |
| 6. |
Whitetopping layers are traditionally designed and analyzed based on the assumption that a bond exists the concrete and the HMA layers. |
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Above |
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Under |
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Between |
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None of the above |
| 7. |
The vertical separation of adjacent slabs that is due to many factors, including poor load transfer and loss of support is known as: |
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Joint faulting |
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Joint spalling |
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Corner cracking |
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None of the above |
| 8. |
At the end of the analysis cycle, the agency and user costs will be calculated for the _____________ period.
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Prior |
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Current |
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Later |
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None of the above |
| 9. |
In order to account for temperature effects during load testing, temperature of the AC layer must be monitored. An alternative method to determine the temperature of the AC using the _________________ was developed by Witczak. |
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Mean monthly air temperature |
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Standard deviation |
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Range of the air temperature |
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Median air temperature |
| 10. |
A large portion of the total deflection can be attributed to the ____________ compression of the AC layer under the 9000 lb load. |
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Vertical |
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Horizontal |
| 11. |
The AI equation is a function of: |
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mix characteristics |
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mix temperature |
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loading frequency |
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All of the above |
| 12. |
The effective plate theory was developed by Iaonnides et al. as a way to evaluate the contribution to the modulus when a concrete base is placed ___________ a stabilized base. |
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Under |
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On top of |
| 13. |
Thicker whitetopping overlays were found to improve pavement performance by ________________ deflections and maximum stresses that were induced in the composite pavement under static loading. |
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Lowering |
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Increasing |
| 14. |
The __________ of the widening units has a significant effect on reducing the deflection.
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Width |
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Depth |
| 15. |
______________ PCC overlay and widening units do provide a viable and economical alternative in the field of overlay rehabilitation strategies for narrow highway pavements. |
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Thin |
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Thick |
| 16. |
Composite pavements with fully bonded and unbonded layers exhibited very ___________ behavior. |
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Different |
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Similar |
| 17. |
The existing design methods for thin overlays contain much of the same theory and are tailored for the specific needs of the user. |
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True |
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False |
| 18. |
The Iowa method is designed to use tools available to the state highway department staff in the form of as-built plans, traffic projections, coring, deflection testing, and visual distress surveys to form the inputs to the design process. Much of the Colorado procedure __________ been incorporated into this process. |
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Has |
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Has not |
| 19. |
Existing Iowa research indicates __________ in joint performance between joints that were air blasted after sawing and joints that were not cleaned. |
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A significant difference |
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No difference |
| 20. |
The Center for Portland Cement Concrete Pavement Technology (PCC Center) is housed at the Center for Transportation Research and Education (CTRE) at _______________. |
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Iowa State University |
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University of North Carolina |
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Penn State |
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University of Texas |
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