MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
Design the thickness of a rigid pavement slab for a two-way, two-lane National highway in the state of West Bengal. The total two-way traffic is 2500 CVPD at the end of the construction period. The flexural strength of concrete is 45 kg/cm2, modulus of subgrade reaction is 8 kg/cm3, tyre pressure is 8 kg/cm2, the rate of traffic increase is taken as 7.5 %, the spacing of contraction joints is 4.5 m and the width of the slab is 3.5 m. Assume any other data required. The axle load spectrum obtained from a survey is given below: |
| A. | 38 cm |
| B. | 36 cm |
| C. | 32 cm |
| D. | 35 cmView Answer |
| Answer» D. 35 cmView Answer | |
| 2. |
The IRC method of rigid pavement design consists of the determination of various parameters. Which of the below options represents the order of designing the parameters? |
| A. | Slab thickness, dowel and tie bar design |
| B. | Joint spacing, slab thickness, dowel and tie bar design |
| C. | Slab thickness, joint spacing, dowel and tie bar design |
| D. | Slab thickness, stress determination, dowel and tie bar design |
| Answer» C. Slab thickness, joint spacing, dowel and tie bar design | |
| 3. |
Which of the below represents a safe design? |
| A. | Temperature stress + load stress at edge = 46.65 kg/cm2 |
| B. | Corner load stress = 48 kg/cm2 |
| C. | Temperature stress + load stress at edge = 43.65 kg/cm2 |
| D. | Corner load stress = 45.65 kg/cm2 |
| Answer» D. Corner load stress = 45.65 kg/cm2 | |
| 4. |
The trial thickness is considered to be unsafe if the cumulative fatigue life is ______ |
| A. | Less than 1 |
| B. | More than 1 |
| C. | Less than 0.5 |
| D. | More than 0.5 |
| Answer» C. Less than 0.5 | |
| 5. |
To calculate the corner stress, the equation by ______ is used. |
| A. | Westergaard |
| B. | Kelly |
| C. | Teller |
| D. | Bradbury |
| Answer» C. Teller | |
| 6. |
What is stress ratio? |
| A. | Flexural stress due to load / flexural strength of concrete |
| B. | Flexural strength of concrete / flexural stress due to warping |
| C. | Flexural stress due to warping / flexural strength of concrete |
| D. | Flexural strength of concrete / flexural stress due to load |
| Answer» B. Flexural strength of concrete / flexural stress due to warping | |
| 7. |
The states belonging to which zone have the maximum temperature differential? |
| A. | Zone I |
| B. | Zone II |
| C. | Zone III |
| D. | Zone IV |
| Answer» D. Zone IV | |
| 8. |
What is the range of values for flexural strength of concrete? |
| A. | 44.27 to 47.61 kg/cm2 |
| B. | 37.26 to 44.27 kg/cm2 |
| C. | 33.27 to 47.61 kg/cm2 |
| D. | 37.26 to 47.61 kg/cm2 |
| Answer» E. | |
| 9. |
What would be the design traffic for a National highway design if the following data is available?Present traffic = 2000 CVPDDesign period = 25 yearsRate of traffic growth = 6% |
| A. | 19626490 CV |
| B. | 4906623 CV |
| C. | 9813245 CV |
| D. | 2453312 CV |
| Answer» C. 9813245 CV | |
| 10. |
The equation \(f_{cr}=0.49f_{ck}^{0⋅55}\) to find the flexural strength of concrete was given by ______ |
| A. | IS 456:2000 |
| B. | Croney and Croney |
| C. | AASHTO |
| D. | IRC 58:2002 |
| Answer» C. AASHTO | |
| 11. |
Which of the below is used as a check for the design of slab thickness? |
| A. | Edge temperature stress |
| B. | Corner temperature stress |
| C. | Edge load stress |
| D. | Corner warping stress |
| Answer» B. Corner temperature stress | |
| 12. |
The design of rigid pavement essentially means the computation of slab thickness. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
Which of the below axles are not to be considered in the design? |
| A. | Tandem axle |
| B. | Single axle |
| C. | Rear axle |
| D. | Front axle |
| Answer» E. | |
| 14. |
The traffic volume is usually projected for ______ years. |
| A. | 15 |
| B. | 20 |
| C. | 25 |
| D. | 30 |
| Answer» C. 25 | |
| 15. |
What is the method used for the design of rigid pavements? |
| A. | IRC method |
| B. | Westergaard’s analysis |
| C. | Bradbury’s analysis |
| D. | PCA method |
| Answer» B. Westergaard’s analysis | |