MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
Why Shape and texture of aggregates is a must? |
| A. | Smooth surfaces give better workability |
| B. | Smooth surfaces give poor workability |
| C. | Rough surfaces give better workability |
| D. | Rough surfaces give poor workability |
| Answer» B. Smooth surfaces give poor workability | |
| 2. |
Adding water increases __________ |
| A. | Workability |
| B. | Strength |
| C. | Fame |
| D. | Quality |
| Answer» B. Strength | |
| 3. |
A compaction factor of .85 for a cement concrete sample indicates ___________ |
| A. | Low workability |
| B. | Medium workability |
| C. | Good workability |
| D. | Very good workability |
| Answer» B. Medium workability | |
| 4. |
Workability of concrete is inversely proportional to __________ |
| A. | Grading of the aggregates |
| B. | Time of transit |
| C. | Aggregates cement ratio |
| D. | Water cement ratio |
| Answer» E. | |
| 5. |
Workability of concrete is directly proportional to __________ |
| A. | Grading of the aggregates |
| B. | Time of transit |
| C. | Aggregates cement ratio |
| D. | Water cement ratio |
| Answer» B. Time of transit | |
| 6. |
Workability of concrete can be improved by __________ |
| A. | More sand |
| B. | More cement |
| C. | More fine aggregates |
| D. | Fineness of coarse aggregate |
| Answer» C. More fine aggregates | |
| 7. |
Workability of concrete can be improved by the addition of __________ |
| A. | Iron |
| B. | Sodium |
| C. | Zinc |
| D. | Sulphur |
| Answer» D. Sulphur | |
| 8. |
What do you mean by workability? |
| A. | ASTM C 125 defines workability as the property determining the effort required to manipulate a freshly mixed quantity of concrete with a maximum loss of homogeneity |
| B. | ASTM C 125 defines workability as the property determining the effort required to manipulate a freshly mixed quantity of concrete with minimum loss of heterogeneity |
| C. | The strict definition of workability is the amount of useful external work, against the external friction between the individual particles in the concrete, necessary to produce full compaction |
| D. | The workability is also defined as the ease with which a freshly mixed concrete can be properly compacted and also that it can be transported, placed, and finished |
| Answer» E. | |