MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
The coefficient of thermal expansion affects the heat resistance. |
| A. | False |
| B. | True |
| Answer» C. | |
| 2. |
The thermal conductivity of the aggregates is ______________ |
| A. | The ability to conduct the heat |
| B. | The ability to insulate the heat |
| C. | Is a measure of its heat capacity |
| D. | Same as thermal conductivity |
| Answer» B. The ability to insulate the heat | |
| 3. |
The specific heat of the aggregates is _____________ |
| A. | The ability to conduct the heat |
| B. | The ability to insulate the heat |
| C. | Is a measure of its heat capacity |
| D. | Same as thermal conductivity |
| Answer» D. Same as thermal conductivity | |
| 4. |
The linear thermal coefficient of expansion lies between approximately ____________ |
| A. | 5.4 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C |
| B. | 10.8 * 10<sup>-6</sup> and 16.2 * 10<sup>-6</sup> per <sup>o</sup>C |
| C. | 5.8 * 10<sup>-6</sup> and 14 * 10<sup>-6</sup> per <sup>o</sup>C |
| D. | 10.8 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C |
| Answer» D. 10.8 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C | |
| 5. |
For hydrated Portland cement, the coefficient of thermal expansion lies between approximately ____________ |
| A. | 5.4 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C |
| B. | 10.8 * 10<sup>-6</sup> and 16.2 * 10<sup>-6</sup> per <sup>o</sup>C |
| C. | 5.4 * 10<sup>-6</sup> and 10.8 * 10<sup>-6</sup> per <sup>o</sup>C |
| D. | 10.8 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C |
| Answer» C. 5.4 * 10<sup>-6</sup> and 10.8 * 10<sup>-6</sup> per <sup>o</sup>C | |
| 6. |
For majority of aggregates, the coefficient of thermal expansion lies between approximately ____________ |
| A. | 5.4 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C |
| B. | 10.8 * 10<sup>-6</sup> and 16.2 * 10<sup>-6</sup> per <sup>o</sup>C |
| C. | 5.4 * 10<sup>-6</sup> and 10.8 * 10<sup>-6</sup> per <sup>o</sup>C |
| D. | 10.8 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C |
| Answer» B. 10.8 * 10<sup>-6</sup> and 16.2 * 10<sup>-6</sup> per <sup>o</sup>C | |
| 7. |
If the coefficient of the two materials differ by more than 5.4 * 10-6 per oC, then? |
| A. | Workability of concrete may freeze |
| B. | Durability of concrete subjected to freezing |
| C. | Durability of concrete subjected to boiling |
| D. | Workability of concrete subjected to boiling |
| Answer» C. Durability of concrete subjected to boiling | |
| 8. |
Coefficient of thermal expansion of concrete is __________ coefficient of thermal expansion in aggregates. |
| A. | Directly proportional |
| B. | Inversely proportional |
| C. | Equal |
| D. | More than |
| Answer» B. Inversely proportional | |
| 9. |
How many principal thermal properties are there for aggregates? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |