MCQOPTIONS
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This section includes 12 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. |
Creep is ____ to the strength of concrete. |
| A. | Equal |
| B. | Similar |
| C. | Directly proportional |
| D. | Inversely proportional |
| Answer» E. | |
| 2. |
At the construction stage, binding wires ____________ |
| A. | Should touch the formwork |
| B. | Should not touch the formwork |
| C. | To be turned outside |
| D. | To be turned whole structure |
| Answer» C. To be turned outside | |
| 3. |
Cement not more than ________ months old should be used. |
| A. | 1 |
| B. | 1.5 |
| C. | 2 |
| D. | 3 |
| Answer» E. | |
| 4. |
CREEP_IS______TO_THE_STRENGTH_OF_CONCRETE.?$ |
| A. | Equal |
| B. | Similar |
| C. | Directly proportional |
| D. | Inversely proportional |
| Answer» E. | |
| 5. |
What_is_elastic_strains?$ |
| A. | These are the instantaneous deformations that occur when an external stress is first applied |
| B. | These deformations occur either on loss of moisture from the concrete on cooling of concrete |
| C. | It is the time-dependent deformation that occurs on the prolonged application of stress |
| D. | Any one or combinations of the above types of deformations in a hardened concrete leads to cracking |
| Answer» B. These deformations occur either on loss of moisture from the concrete on cooling of concrete | |
| 6. |
At the construction stage, binding wires ___________? |
| A. | Should touch the formwork |
| B. | Should not touch the formwork |
| C. | To be turned outside |
| D. | To be turned whole structure |
| Answer» C. To be turned outside | |
| 7. |
Powder epoxy is fusion bonded to bar at about _________0C temperature. |
| A. | 100 |
| B. | 250 |
| C. | 300 |
| D. | 350 |
| Answer» C. 300 | |
| 8. |
What should be the minimum water cement ratio? |
| A. | .45 |
| B. | .5 |
| C. | <.45 |
| D. | >.45 |
| Answer» D. >.45 | |
| 9. |
Symptoms for aggressive ASR? |
| A. | It will show disintegration of the concrete evidenced by loss of the cement paste |
| B. | It will show concrete surfaces that are very rough in areas where the paste is leached |
| C. | Affected concrete does not exhibit telltale features too distinctly |
| D. | Expansion does not occur without reaction products |
| Answer» E. | |
| 10. |
Symptoms for aggressive ACR reaction? |
| A. | It will show disintegration of the concrete evidenced by loss of the cement paste |
| B. | It will show concrete surfaces that are very rough in areas where the paste is leached |
| C. | Affected concrete does not exhibit telltale features too distinctly |
| D. | Expansion does not occur without reaction products |
| Answer» D. Expansion does not occur without reaction products | |
| 11. |
Symptoms for aggressive water attack? |
| A. | It will show disintegration of the concrete evidenced by loss of the cement paste |
| B. | It will show concrete surfaces that are very rough in areas where the paste is leached |
| C. | Affected concrete does not exhibit telltale features too distinctly |
| D. | Expansion does not occur without reaction products |
| Answer» C. Affected concrete does not exhibit telltale features too distinctly | |
| 12. |
Symptoms for acid attack? |
| A. | It will show disintegration of the concrete evidenced by loss of the cement paste |
| B. | It will show concrete surfaces that are very rough in areas where the paste is leached |
| C. | Affected concrete does not exhibit telltale features too distinctly |
| D. | Expansion does not occur without reaction products |
| Answer» B. It will show concrete surfaces that are very rough in areas where the paste is leached | |