MCQOPTIONS
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MCQOPTIONS
This section includes 11 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 volume of concrete increases when attacked by sulphate. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The cracks developed in the concrete pavement due to the freezing and thawing cycle of the aggregates is called S-cracking. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
What will be the compressive strength of a 150 mm concrete cylinder if the failure load is 500 kN? |
| A. | 0.2829 N/mm2 |
| B. | 0.02829 N/mm2 |
| C. | 0.02829×10-3 N/mm2 |
| D. | 28.29 N/mm2 |
| Answer» E. | |
| 4. |
Which of the below options represents the correct sequence of the stages in the hydration of cement? |
| A. | Mixing, hardening, dormancy, cooling, densification |
| B. | Mixing, dormancy, cooling, densification, hardening |
| C. | Mixing, dormancy, hardening, cooling, densification |
| D. | Mixing, hardening, cooling, densification, dormancy |
| Answer» D. Mixing, hardening, cooling, densification, dormancy | |
| 5. |
______ test is used to control the workability of the mix. |
| A. | Ball penetration |
| B. | Slump |
| C. | Consistency |
| D. | Vee Bee |
| Answer» C. Consistency | |
| 6. |
What is the maximum size of coarse aggregates to be used in PQC? |
| A. | 25 mm |
| B. | 40 mm |
| C. | 10 mm |
| D. | 12.5 mm |
| Answer» B. 40 mm | |
| 7. |
What does PQC stand for? |
| A. | Pavement Quality Control |
| B. | Pavement Quality Cement |
| C. | Pavement Quality Construction |
| D. | Pavement Quality Concrete |
| Answer» E. | |
| 8. |
What is the formula for determining the modulus of elasticity of concrete as per ACI? |
| A. | E=4500\(\sqrt{f_{ck}}\) |
| B. | E=5500\(\sqrt{f_{ck}}\) |
| C. | E=4700\(\sqrt{f_{ck}}\) |
| D. | E=5000\(\sqrt{f_{ck}}\) |
| Answer» D. E=5000\(\sqrt{f_{ck}}\) | |
| 9. |
As per the classification of Portland cement according to properties, what does Type-III indicate? |
| A. | High sulphate resistance |
| B. | Normal concrete |
| C. | High early strength |
| D. | Low heat of hydration |
| Answer» D. Low heat of hydration | |
| 10. |
If OPC is used, then it should be done so in accordance with which code? |
| A. | IS 456 |
| B. | IS 1489 |
| C. | IS 455 |
| D. | IS 269 |
| Answer» E. | |
| 11. |
What is the minimum grade of concrete to be used in pavements? |
| A. | M30 |
| B. | M40 |
| C. | M20 |
| D. | M50 |
| Answer» C. M20 | |