MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Construction Materials knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
All ________ tend to accelerate the setting of cement and to improve the strength of concrete in early stages. |
| A. | Chlorides |
| B. | Sulphates |
| C. | Sodium |
| D. | Potassium |
| Answer» B. Sulphates | |
| 2. |
It is found that the ________ does not lead to the corrosion of reinforcement, provided that the concrete is dense and there is enough cover to the enforcement. |
| A. | Ground water |
| B. | Lake water |
| C. | Sea water |
| D. | Stream Water |
| Answer» D. Stream Water | |
| 3. |
Most important affect of corrosion is the formation of _________ |
| A. | Swelling |
| B. | Cracks |
| C. | Bubbles |
| D. | Gas |
| Answer» C. Bubbles | |
| 4. |
The _________ is most liable to corrosion. |
| A. | Gold |
| B. | Copper |
| C. | Steel |
| D. | Wood |
| Answer» D. Wood | |
| 5. |
The _________ is the simplest corrosion produced by means of a chemical attack. |
| A. | Direct corrosion |
| B. | Indirect corrosion |
| C. | Electro osmosis process |
| D. | Electro Chemical action |
| Answer» B. Indirect corrosion | |
| 6. |
Cement concrete has tendency to be ________ |
| A. | Flexible |
| B. | Elastic |
| C. | Porous |
| D. | Shine |
| Answer» D. Shine | |
| 7. |
There is initial ___________ of cement concrete which is mainly due to loss of water through forms, absorption by surfaces of forms, etc. |
| A. | Swelling |
| B. | Cracking |
| C. | Dispersion |
| D. | Shrinkage |
| Answer» E. | |
| 8. |
Cement concrete is prove to be more economical than _________ |
| A. | Aluminium |
| B. | Steel |
| C. | Copper |
| D. | Silica |
| Answer» C. Copper | |