MCQOPTIONS
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MCQOPTIONS
This section includes 4 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. |
Concentration of water-soluble sulphates in water ___________ ppm for severe exposure. |
| A. | <150 |
| B. | 150-1500 |
| C. | 150-10000 |
| D. | >10000 |
| Answer» D. >10000 | |
| 2. |
Concentration of water-soluble sulphates in water ___________ ppm for mild exposure. |
| A. | <150 |
| B. | 150-1500 |
| C. | 150-10000 |
| D. | >10000 |
| Answer» B. 150-1500 | |
| 3. |
The quality of concrete, specifically a ____________ cement content, is the best protection against sulphate attack. |
| A. | High |
| B. | Medium |
| C. | Low |
| D. | Very low |
| Answer» B. Medium | |
| 4. |
The addition of a pozzolanic admixture such as fly ash reduces the ____________ |
| A. | C<sub>3</sub>S |
| B. | C<sub>3</sub>A |
| C. | C<sub>2</sub>S |
| D. | C<sub>4</sub>AF |
| Answer» C. C<sub>2</sub>S | |