MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Concrete Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the capacity of a measuring cylinder? |
| A. | 10ml |
| B. | 50ml |
| C. | 100ml |
| D. | 1000ml |
| Answer» D. 1000ml | |
| 2. |
If t1=Time at which water is first added to cement, t2=Time when needle fails to penetrate 5 mm to 7 mm from bottom of the mould, t3=Time when the needle makes an impression but the attachment fails to do so, then what is final setting time? |
| A. | t2-t1 |
| B. | t2+t1 |
| C. | t3-t1 |
| D. | 2*t1 |
| Answer» D. 2*t1 | |
| 3. |
If t1=Time at which water is first added to cement, t2=Time when needle fails to penetrate 5 mm to 7 mm from bottom of the mould, t3=Time when the needle makes an impression but the attachment fails to do so, then what is initial setting time? |
| A. | t2-t1 |
| B. | t2+t1 |
| C. | t3-t1 |
| D. | 2*t1 |
| Answer» B. t2+t1 | |
| 4. |
What is the final setting time? |
| A. | The time at which cement paste loses its plasticity |
| B. | The time to reach that stage at which cement paste loses its elasticity |
| C. | The time at which cement paste gains its plasticity |
| D. | The time when cement paste becomes hardened |
| Answer» B. The time to reach that stage at which cement paste loses its elasticity | |
| 5. |
In the soundness test, the whole assembly is immersed in water for _______ |
| A. | 30 minutes |
| B. | 1 hour |
| C. | 24 hours |
| D. | 48 hours |
| Answer» D. 48 hours | |
| 6. |
Final setting time of cement should not be more than _______ |
| A. | 1 hour |
| B. | 2 hours |
| C. | 5 hours |
| D. | 10 hours |
| Answer» E. | |
| 7. |
What is the initial setting time? |
| A. | The time at which cement paste loses its plasticity |
| B. | The time at which cement paste loses its elasticity |
| C. | The time at which cement paste gains its plasticity |
| D. | The time at which cement paste gains its elasticity |
| Answer» B. The time at which cement paste loses its elasticity | |
| 8. |
In cement hardening process ___________ instants are very important. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 9. |
What_is_the_capacity_of_measuring_cylinder?$ |
| A. | 10ml |
| B. | 50ml |
| C. | 100ml |
| D. | 1000ml |
| Answer» D. 1000ml | |
| 10. |
If t1=Time at which water is first added to cement? |
| A. | |
| B. | |
| Answer» B. | |
| 11. |
Initial setting time of Low Heat Cement should not be less than _____________ |
| A. | 15 minutes |
| B. | 30 minutes |
| C. | 60 minutes |
| D. | 1 hour |
| Answer» C. 60 minutes | |
| 12. |
In the soundness test, the whole assembly is immersed in water for |
| A. | 30 minutes |
| B. | 1 hour |
| C. | 24 hours |
| D. | 48 hours |
| Answer» D. 48 hours | |
| 13. |
Final setting time of cement should not be more than |
| A. | 1 hour |
| B. | 2 hours |
| C. | 5 hours |
| D. | 10 hours |
| Answer» E. | |
| 14. |
Initial setting time of OPC should not be less than ___________ |
| A. | 15 minutes |
| B. | 30 minutes |
| C. | 28 minutes |
| D. | 1 hour |
| Answer» C. 28 minutes | |
| 15. |
What is initial setting time? |
| A. | The time at which cement paste loses its plasticity |
| B. | The time at which cement paste loses its elasticity |
| C. | The time at which cement paste gains its plasticity |
| D. | The time at which cement paste gains its elasticity |
| Answer» B. The time at which cement paste loses its elasticity | |
| 16. |
In cement hardening process, ___________ instants are very important. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |