MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
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. |
Aggregates with a specific gravity of _________ are called lightweight aggregates. |
| A. | <2.4 |
| B. | 2.4-2.8 |
| C. | >2.8 |
| D. | > 3 |
| Answer» B. 2.4-2.8 | |
| 2. |
________ is the most commonly used. |
| A. | Conglomerate |
| B. | Gneiss |
| C. | Marble |
| D. | Pumice |
| Answer» E. | |
| 3. |
________ is also something used as the aggregate component of lightweight concretes. |
| A. | Conglomerate |
| B. | Gneiss |
| C. | Marble |
| D. | Diatomite |
| Answer» E. | |
| 4. |
_________IS_THE_MOST_COMMONLY_USED.?$ |
| A. | Conglomerate |
| B. | Gneiss |
| C. | Marble |
| D. | Pumice |
| Answer» E. | |
| 5. |
Aggregates with a specific gravity of _________ are called lightweight aggregates.$ |
| A. | <2.4 |
| B. | 2.4-2.8 |
| C. | >2.8 |
| D. | > 3 |
| Answer» B. 2.4-2.8 | |
| 6. |
________ is also something used as the aggregate component of lightweight concretes? |
| A. | Conglomerate |
| B. | Gneiss |
| C. | Marble |
| D. | Diatomite |
| Answer» E. | |
| 7. |
Most low-density aggregates are ________ in origin. |
| A. | Volcanic |
| B. | Sea water |
| C. | Highly dense area |
| D. | Low dense area |
| Answer» B. Sea water | |
| 8. |
In making precast structural units for partition and wall lining purposes, the concrete should be __________ |
| A. | Vacuum concrete |
| B. | LWC |
| C. | Prestressed concrete |
| D. | Sawdust concrete |
| Answer» C. Prestressed concrete | |
| 9. |
This type of concrete possesses __________ |
| A. | High insulating property |
| B. | High conducting property |
| C. | Low insulating property |
| D. | Very high insulating property |
| Answer» E. | |
| 10. |
The sound absorption coefficient of light weight concrete is nearly __________ |
| A. | Twice |
| B. | Thrice |
| C. | Four times |
| D. | Six times |
| Answer» B. Thrice | |
| 11. |
The removal of excess air after placing concrete helps in increasing the strength of concrete by ___________ |
| A. | 15-20% |
| B. | 20-25% |
| C. | 30-50% |
| D. | 50-70% |
| Answer» B. 20-25% | |
| 12. |
The cement concrete, from which entrained air and excess water are removed after placing it in position, is called _________ |
| A. | Vacuum concrete |
| B. | LWC |
| C. | Prestressed concrete |
| D. | Sawdust concrete |
| Answer» B. LWC | |