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. |
If the design traffic is 20 msa and a characteristic deflection of 4.5 mm, what would be the thickness of bituminous macadam overlay if WBM binder course is to be laid? |
| A. | 50 mm |
| B. | 100 mm |
| C. | 200 mm |
| D. | 400 mm |
| Answer» E. | |
| 2. |
What is the recommended thickness of bituminous concrete surface course in the overlay design? |
| A. | Minimum 50 mm |
| B. | Maximum 50 mm |
| C. | Minimum 40 mm |
| D. | Maximum 40 mm |
| Answer» D. Maximum 40 mm | |
| 3. |
The design traffic for a minor highway is found to be 10.55 msa. The BBD studies conducted at 30°C on sandy soil with 8% moisture content and an annual rainfall of 1300 mm gave the following results:Rebound deflection values recorded at various points = 1.40, 1.38, 1.49, 1.50, 1.55, 1.44, 1.58, 1.43, 1.33, 1.37 mm |
| A. | 150 mm |
| B. | 140 mm |
| C. | 100 mm |
| D. | 160 mm |
| Answer» C. 100 mm | |
| 4. |
Traffic studies were conducted on a 4-lane flexible pavement highway and the average CVPD was found to be 3000 in one direction. The growth rate is 7.5%, VDF is 4.5 and the estimated time of completion of the overlay is 2 years. The BBD studies yielded the mean rebound deflection to be 3 mm when tested at 35°C in the monsoon time and the standard deviation is found to be 0.22 mm. What would be the thickness of the overlay if it to be designed for 10 years? |
| A. | 240 mm |
| B. | 210 mm |
| C. | 200 mm |
| D. | 250 mm |
| Answer» E. | |
| 5. |
The overlay can be directly laid over the existing surface after cleaning. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Traffic studies were conducted on a 4-lane divided flexible pavement highway and the average CVPD was found to be 3500 in one direction. The growth rate is 5%, VDF is 4.5 and the estimated time of completion of the overlay is 2 years. The BBD studies yielded the characteristic deflection to be 2.4 mm. What would be the thickness of the overlay if it to be designed for 10 years? |
| A. | 210 mm |
| B. | 201 mm |
| C. | 120 mm |
| D. | 102 mm |
| Answer» B. 201 mm | |
| 7. |
If the design traffic is 15 msa and a characteristic deflection of 3 mm, compute the thickness of overlay if DBM binder course and bituminous concrete (BC) surface course is to be adopted. What would be the thickness of the BC surface course? |
| A. | 151 mm |
| B. | 51 mm |
| C. | 150 mm |
| D. | 50 mm |
| Answer» C. 150 mm | |
| 8. |
The thickness of the overlay obtained from design chart is in terms of bituminous macadam construction. What is the conversion if thickness in terms of DBM is required? |
| A. | 1 cm BM = 0.7 mm DBM |
| B. | 1 cm BM = 1.5 mm DBM |
| C. | 1 cm BM = 0.7 cm DBM |
| D. | 1 cm BM = 1.5 cm DBM |
| Answer» D. 1 cm BM = 1.5 cm DBM | |
| 9. |
The design curves relating ______ with the characteristic deflection obtained from BBD studies in the code is used for overlay thickness determination. |
| A. | Resilient modulus of the surface |
| B. | CSA over the design period |
| C. | Thickness of existing pavement |
| D. | Pavement condition index |
| Answer» C. Thickness of existing pavement | |
| 10. |
The design of overlay can be done using the Benkelman beam deflection studies result. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
What is the conversion factor for the subgrade in the effective thickness overlay design method? |
| A. | 1 |
| B. | 0 |
| C. | 0.1 |
| D. | 1.1 |
| Answer» C. 0.1 | |
| 12. |
Find the overlay thickness if the following data is available using the effective thickness method.Thickness of existing pavement: 260 mm GSB, 250 mm WBM, 90 mm BM and 40 mm BCConversion factors = 0.1 for GSB and WBM, 0.5 for BM and 0.6 for BCThickness of new pavement: 300 mm GSB, 250 mm WWM, 100 mm DBM and 40 mm BCConversion factors = 0.2 for GSB and WWM, 1 for DBM and BC |
| A. | 230 mm |
| B. | 250 mm |
| C. | 120 mm |
| D. | 130 mm |
| Answer» E. | |
| 13. |
What is the equation used to find the effective thickness of the existing pavement? |
| A. | \(h_e=∑_{i=1}^n C_i\) |
| B. | \(h_e=∑_{i=0}^n h_i C_i\) |
| C. | \(h_e=∑_{i=1}^n h_i\) |
| D. | \(h_e=∑_{i=1}^n h_i C_i\) |
| Answer» E. | |
| 14. |
How many types of overlays are possible to provide on existing pavements? |
| A. | Two types of asphalt overlays and single coat of cc overlay |
| B. | Two types of cc overlays and single coat of asphalt overlay |
| C. | Two types of asphalt overlays and two types of cc overlays |
| D. | Single coat of asphalt overlay and single coat of cc overlay |
| Answer» D. Single coat of asphalt overlay and single coat of cc overlay | |
| 15. |
The first step in designing an overlay is estimating the strength of the existing pavement. What step is to be performed after this? |
| A. | Determining overlay thickness |
| B. | Determining overlay design life |
| C. | Estimation of traffic on an overlay |
| D. | Determining overlay type |
| Answer» C. Estimation of traffic on an overlay | |