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. |
According to IRC:15-2011, maximum free W/C ratio for PPC is _________ |
| A. | .45 |
| B. | .4 |
| C. | .5 |
| D. | .55 |
| Answer» D. .55 | |
| 2. |
According to IRC:15-2011, maximum free W/C ratio for OPC is ________________ |
| A. | .45 |
| B. | .4 |
| C. | .5 |
| D. | .55 |
| Answer» B. .4 | |
| 3. |
According to IRC:15-2011, Minimum cement content for 4.5 N/mm2 characteristic flexural strength for OPC + fly ash mix OPC shall ____________ |
| A. | Shall not be less than 360 kg/m<sup>3</sup> |
| B. | Shall not be less than 425 kg/m<sup>3</sup> |
| C. | Shall not be less than 340 kg/m<sup>3</sup> |
| D. | Shall not be less than 500 kg/m<sup>3</sup> |
| Answer» D. Shall not be less than 500 kg/m<sup>3</sup> | |
| 4. |
According to IRC:15-2011, Minimum cement content for 4.5 N/mm2 characteristic flexural strength for PPC shall _________ |
| A. | Shall not be less than 360 kg/m<sup>3</sup> |
| B. | Shall not be less than 425 kg/m<sup>3</sup> |
| C. | Shall not be less than 340 kg/m<sup>3</sup> |
| D. | Shall not be less than 500 kg/m<sup>3</sup> |
| Answer» C. Shall not be less than 340 kg/m<sup>3</sup> | |
| 5. |
According to IRC:15-2011, Minimum cement content for 4.5 N/mm2 characteristic flexural strength for OPC shall _____________ |
| A. | Shall not be less than 360 kg/m<sup>3</sup> |
| B. | Shall not be less than 425 kg/m<sup>3</sup> |
| C. | Shall not be less than 340 kg/m<sup>3</sup> |
| D. | Shall not be less than 500 kg/m<sup>3</sup> |
| Answer» B. Shall not be less than 425 kg/m<sup>3</sup> | |
| 6. |
According to IRC:15-2011, Maximum nominal size of aggregates is ________ |
| A. | 20 mm crushed aggregates |
| B. | 31.5 mm crushed aggregates |
| C. | 25 mm crushed aggregates |
| D. | 30.5 mm crushed aggregates |
| Answer» C. 25 mm crushed aggregates | |
| 7. |
According to IRC:15-2002 _______% Fly ash is required to be replaced with the total cementitious materials. |
| A. | 15 |
| B. | 20 |
| C. | 25 |
| D. | 30 |
| Answer» D. 30 | |
| 8. |
According to IRC:15-2011 _______% Fly ash is required to be replaced with the total cementitious materials. |
| A. | 15 |
| B. | 20 |
| C. | 25 |
| D. | 30 |
| Answer» C. 25 | |
| 9. |
According to IRC:15-2011, Characteristic Flexural Strength at 28 days is ____________ |
| A. | 4 N/mm<sup>2</sup> |
| B. | 4.5 N/mm<sup>2</sup> |
| C. | 5 N/mm<sup>2</sup> |
| D. | 3.5 N/mm<sup>2</sup> |
| Answer» C. 5 N/mm<sup>2</sup> | |