Q4/Choose the correct answer Choose 9 only) (27 Marks) 1. The relationship between a psi and age of pavement is........... a. A psico age b. A psi (1/age) C. A psic2(1/age) d. Non of the above 2. The surface of the pavement should be a. Smooth b. Rough c. Sufficient engugh to resist skid d. All the above acceptable 3. The good drainage in pavement can a. Increase the pavement life b. Decrease the pavement life c. Increase the pavement thickness d. Decrease the pavement thickness 4. The function of an expansion joint in rigid pavements is to a. Relieve warping stresses b. Relieve shrinkage stresses c. Resist stresses due to expansion d. Allow free expansion e. All the above 5. The camber required depends on:- a. Type of pavement b. Rainfall c. Pavement thickness d. both (a and b) e. both (b and c) 6. Flexible pavement distribute the wheel load a. Directly to sub-grade b. Directly to subbase c. Through a set of layers to the sub-grade d. all the above 7. Tie bars in cement concrete pavements are at a. Expansion joints b. Contraction joints c. Longitudinal joints d. All the above 8. The weight of vehicles affects on a. Pavement thickness b. Number of lanes c. lane width d. All the above 9. The maximum width of expansion joint in rigid pavements is a. 25 mm b. 2.5 in. c. 25 cm d. According to weight of vehicles 10. In case of cement concrete pavements, pick up the incorrect statement a. Maintenance cost is low b. Initial cost of construction is high c. Initial cost of construction low d. Visibility during nights is high