11. The range of typical terminal serviceability indices (pt) used in design of highway pavements is: a. -1.0 and 0.0 b. 0.0 and 1.0 c. 2.0 and 2.5 d. 10.0 and 20.0 14. In the AASHTO 1986 and 1993 design guide, the following modification(s) was(were) incorporated in the design procedure: a. Reliability b. Changes in modulus of elasticity subgrade materials due to climate c. Drainage layers d. All of the above 15. Interstate highways should be designed for a lower level of reliability as compared to secondary roads. a. True b. False 17. In the Asphalt Institute flexible pavement design approach, Where are the critical stress and strain locations checked? a. Top of the asphalt concrete layer b. Middle of the asphalt concrete layer c. Bottom of the asphalt concrete layer d. Bottom of the asphalt concrete layer and top of the subgrade 19. In the Portland Cement Association (PCA) design of rigid highway pavements, the design approach is based on: a. Fatigue Damage b. Erosion Damage c. Both Fatigue Damage and Erosion Damage d. None of the above
11. The range of typical terminal serviceability indices (pt) used in design of highway pavements is:
a. -1.0 and 0.0
b. 0.0 and 1.0
c. 2.0 and 2.5
d. 10.0 and 20.0
14. In the AASHTO 1986 and 1993 design guide, the following modification(s) was(were) incorporated in
the design procedure:
a. Reliability
b. Changes in modulus of elasticity subgrade materials due to climate
c. Drainage layers
d. All of the above
15. Interstate highways should be designed for a lower level of reliability as compared to secondary roads.
a. True
b. False
17. In the Asphalt Institute flexible pavement design approach, Where are the critical stress and strain
locations checked?
a. Top of the asphalt concrete layer
b. Middle of the asphalt concrete layer
c. Bottom of the asphalt concrete layer
d. Bottom of the asphalt concrete layer and top of the subgrade
19. In the Portland Cement Association (PCA) design of rigid highway pavements, the design approach is
based on:
a. Fatigue Damage
b. Erosion Damage
c. Both Fatigue Damage and Erosion Damage
d. None of the above
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