MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
When concrete is to be laid under water ___________ is to used. |
| A. | Rapid Hardening Cement |
| B. | Ordinary Portland Cement |
| C. | Quick Setting Cement |
| D. | Low Heat Cement |
| Answer» D. Low Heat Cement | |
| 2. |
Which cement contains high percentage of C3S and less percentage of C2S? |
| A. | Rapid Hardening Cement |
| B. | Ordinary Portland Cement |
| C. | Quick Setting Cement |
| D. | Low Heat Cement |
| Answer» B. Ordinary Portland Cement | |
| 3. |
Alumina in excess causes _________ |
| A. | Reduces the strength of the cement |
| B. | Inceases the strength of the cement |
| C. | No change |
| D. | Sometimes increase or decrease the strength of the cement |
| Answer» B. Inceases the strength of the cement | |
| 4. |
Silica in excess causes ________ |
| A. | The cement to set slowly |
| B. | The cement to set quickly |
| C. | The cement to expand |
| D. | The cement to disintegrate |
| Answer» B. The cement to set quickly | |
| 5. |
Excess in lime causes _______ |
| A. | The cement to shrink and integrate |
| B. | The cement to shrink and disintegrate |
| C. | The cement to expand and integrate |
| D. | The cement to expand and disintegrate |
| Answer» E. | |
| 6. |
WHAT_IS_THE_PERCENTAGE_OF_IRON_OXIDE_IN_WHITE_CEMENT??$ |
| A. | High |
| B. | Very high |
| C. | Medium |
| D. | Very low |
| Answer» E. | |
| 7. |
What_is_the_percentage_of_air_by_volume_in_Air_Entraining_Cement?$ |
| A. | 3-4 |
| B. | 10-11 |
| C. | 7-8 |
| D. | 9 |
| Answer» B. 10-11 | |
| 8. |
Which of the following is correct for Low Heat Cement? |
| A. | Suitable for use in cold weather areas |
| B. | Heat of hydration is reduced by tri calcium aluminate content |
| C. | This cement requires longer period of curing |
| D. | This cement contains high aluminate %age usually between 35-55%. |
| Answer» C. This cement requires longer period of curing | |
| 9. |
When concrete is to be laid under water, ____ is to used. |
| A. | Rapid Hardening Cement |
| B. | Ordinary Portland Cement |
| C. | Quick Setting Cement |
| D. | Low Heat Cement |
| Answer» D. Low Heat Cement | |
| 10. |
Which cement contains high percentage of C3S and less percentage of C2S? |
| A. | Rapid Hardening Cement |
| B. | Ordinary Portland Cement |
| C. | Quick Setting Cement |
| D. | Low Heat Cement |
| Answer» B. Ordinary Portland Cement | |
| 11. |
Which compound gives the colour to the cement? |
| A. | Lime |
| B. | Silica |
| C. | Iron Oxide |
| D. | Alumina |
| Answer» D. Alumina | |
| 12. |
Silica in excess causes ____ |
| A. | The cement to set slowly |
| B. | The cement to set quickly |
| C. | The cement to expand |
| D. | The cement to disintegrate |
| Answer» B. The cement to set quickly | |
| 13. |
Excess in lime causes ___ |
| A. | The cement to shrink and integrate |
| B. | The cement to shrink and disintegrate |
| C. | The cement to expand and integrate |
| D. | The cement to expand and disintegrate |
| Answer» E. | |
| 14. |
Which chemical compostion has highest content in OPC? |
| A. | Alumina |
| B. | Silica |
| C. | Lime |
| D. | Iron Oxide |
| Answer» D. Iron Oxide | |