MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Pavement Design knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The rigid pavement is usually designed for edge stress and checked for corner stress. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The combination of stresses would lead to failure when the slab is ______ |
| A. | Short |
| B. | Wider |
| C. | Thicker |
| D. | Narrower |
| Answer» C. Thicker | |
| 3. |
A cc slab of thickness 25 cm is constructed over a base of granular material with a modulus of reaction 8 kg/cm3. The maximum temperature differential between the top and bottom of the slab is found to be 20 C during summer day and night. The spacing between transverse joints is 4.5 m and the spacing between longitudinal joints is 3.5 m. The design wheel load is 5100 kg, radius of contact area is 15 cm, Poisson s ratio is 0.13, modulus of elasticity is 2 105 kg/cm2, the thermal coefficient is 10 10-6 / C and the coefficient of friction is 1.5. Using the above information, find the worst combination of stresses during mid-night. |
| A. | 16 kg/cm<sup>2</sup> |
| B. | 15.99 kg/cm<sup>2</sup> |
| C. | 16.99 kg/cm<sup>2</sup> |
| D. | 15 kg/cm<sup>2</sup> |
| Answer» D. 15 kg/cm<sup>2</sup> | |
| 4. |
What stresses are to be computed if critical combination during day time is to be found out? |
| A. | Corner stresses |
| B. | Edge stresses |
| C. | Load stresses |
| D. | Warping stresses |
| Answer» C. Load stresses | |
| 5. |
The load stress is the least in which region? |
| A. | Corner |
| B. | Edge |
| C. | Interior |
| D. | Bottom |
| Answer» D. Bottom | |
| 6. |
A cc slab of thickness 20 cm is constructed over a base of granular material with a modulus of reaction 10 kg/cm3. The maximum temperature differential between the top and bottom of the slab is found to be 19 C during summer day and night. The spacing between transverse joints is 8 m and the spacing between longitudinal joints is 4 m. The design wheel load is 5100 kg, radius of contact area is 15 cm, Poisson s ratio is 0.15, modulus of elasticity is 3 105 kg/cm2, the thermal coefficient is 10 10-6 / C and the coefficient of friction is 1.5. Using the above information, find the worst combination of stresses at the edge of the pavement. |
| A. | 51.59 kg/cm<sup>2</sup> |
| B. | 59.51 kg/cm<sup>2</sup> |
| C. | 59.15 kg/cm<sup>2</sup> |
| D. | 51.95 kg/cm<sup>2</sup> |
| Answer» E. | |
| 7. |
The critical combination of stress occurs at the interior of the pavement during summer. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
In summer season, the frictional stress is ______ |
| A. | Higher |
| B. | Tensile |
| C. | Compressive |
| D. | Lower |
| Answer» D. Lower | |
| 9. |
What is the critical stress combination at the corners? |
| A. | Load stress + warping stress |
| B. | Frictional stress + warping stress |
| C. | Load stress + frictional stress |
| D. | Load stress + warping stress + frictional stress |
| Answer» B. Frictional stress + warping stress | |
| 10. |
What is the critical combination of the stresses at the edge of the pavement during winter? |
| A. | Load stress warping stress |
| B. | Load stress + warping stress |
| C. | Load stress + warping stress + frictional stress |
| D. | Load stress + warping stress frictional stress |
| Answer» D. Load stress + warping stress frictional stress | |
| 11. |
In the pavement corner regions, the critical stress occurs at ______ fibre during ______ |
| A. | Top, mid-day |
| B. | Top, midnight |
| C. | Bottom, mid-day |
| D. | Bottom, midnight |
| Answer» C. Bottom, mid-day | |
| 12. |
Where is the maximum tensile stress developed during mid-day? |
| A. | Top fibre |
| B. | Bottom fibre |
| C. | Center fibre |
| D. | Side fibre |
| Answer» C. Center fibre | |
| 13. |
What happens to the top of the pavement during summer? |
| A. | Expands |
| B. | Contracts |
| C. | Cracks |
| D. | Shrinks |
| Answer» B. Contracts | |