MCQOPTIONS
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MCQOPTIONS
This section includes 10 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 equation for vertical deflection can also be written as ( = frac{pa}{E} F ). What is the term F referred to as? |
| A. | Deflection factor |
| B. | Displacement factor |
| C. | Deflection constant |
| D. | Displacement constant |
| Answer» C. Deflection constant | |
| 2. |
The Boussinesq s equation can be applied when the one-layer system is assumed as a half-space. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Find the vertical stress at a depth of 40 cm from the surface if the radius of the circular load is 17 cm and the contact pressure is 6.5 kg/cm2. |
| A. | 0.43 kg/cm<sup>2</sup> |
| B. | 1.43 kg/cm<sup>2</sup> |
| C. | 0.45 kg/cm<sup>2</sup> |
| D. | 1.45 kg/cm<sup>2</sup> |
| Answer» C. 0.45 kg/cm<sup>2</sup> | |
| 4. |
The deflection in the pavement surface is considered to be equal to deflection on top of the subgrade. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
What is the right equation to find the vertical deflection in the pavement? |
| A. | ( = frac{3p}{2E(a^2+z^2 )^{1 2}} ) |
| B. | ( = frac{3pa^2}{2E(a^2+z^2 )^{1 2}} ) |
| C. | ( = frac{3pa^2}{2E(a^2+z^2 )^{3 2}} ) |
| D. | ( = frac{3pa^2}{E(a^2+z^2 )^{1 2}} ) |
| Answer» C. ( = frac{3pa^2}{2E(a^2+z^2 )^{3 2}} ) | |
| 6. |
The design charts for computing vertical, tangential and radial stresses were first developed for a Poisson s ratio of ______ |
| A. | 0.3 |
| B. | 0.4 |
| C. | 0.2 |
| D. | 0.5 |
| Answer» E. | |
| 7. |
A flexible pavement of thickness 50 cm is laid over a subgrade. A circular load of radius 15 cm with a uniform contact pressure of 7 kg/cm2 is applied on the pavement. What would be the vertical stress on top of the subgrade? |
| A. | 0.85 kg/cm<sup>2</sup> |
| B. | 1.58 kg/cm<sup>2</sup> |
| C. | 0.58 kg/cm<sup>2</sup> |
| D. | 1.85 kg/cm<sup>2</sup> |
| Answer» B. 1.58 kg/cm<sup>2</sup> | |
| 8. |
The vertical ______ on top of the subgrade controls the subgrade rutting. |
| A. | Tensile stress |
| B. | Tensile strain |
| C. | Compressive stress |
| D. | Compressive strain |
| Answer» E. | |
| 9. |
When does shear stress occur in the pavement? |
| A. | Friction between pavement and tyre |
| B. | Seepage into subgrade |
| C. | Loading exceeds capacity |
| D. | Weathering of the pavement surface |
| Answer» D. Weathering of the pavement surface | |
| 10. |
Which of the below is not a type of stress that is commonly found in flexible pavements? |
| A. | Normal stress |
| B. | Shear stress |
| C. | Vertical stress |
| D. | Radial stress |
| Answer» B. Shear stress | |