MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Industry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which one mentioned below is not a raw material used in the Portland cement production? |
| A. | Clay |
| B. | Limestone |
| C. | Gypsum |
| D. | Quicklime |
| Answer» E. | |
| 2. |
CaO(s) + H2O -> Ca(OH)2 -where this chemical reaction occur? |
| A. | Calcination limestone |
| B. | Portland cement production |
| C. | Cement rock beneficiation |
| D. | Hydrated lime |
| Answer» E. | |
| 3. |
Which raw material is used in the hydrated lime process? |
| A. | Quicklime |
| B. | Limestone |
| C. | Coal |
| D. | Gypsum |
| Answer» B. Limestone | |
| 4. |
Which lime has this criteria- Calcium>90%CaO? |
| A. | Slaked lime |
| B. | Hydraulic lime |
| C. | Quicklime |
| D. | Only lime |
| Answer» D. Only lime | |
| 5. |
Why dry grinding process is preferred in the Portland cement production? |
| A. | Savings in heat |
| B. | High pressure |
| C. | High grade |
| D. | Low pressure |
| Answer» B. High pressure | |
| 6. |
Why cement beneficiation is done? |
| A. | To remove silica and iron content |
| B. | To remove silica and aluminum content |
| C. | To remove silica and sulfur content |
| D. | To remove silica and magnesium content |
| Answer» B. To remove silica and aluminum content | |
| 7. |
Which unit operation mentioned below is not involved in cement rock beneficiation? |
| A. | Grinding |
| B. | Flotation |
| C. | Thickening |
| D. | Compression |
| Answer» E. | |
| 8. |
Which type of cement is manufactured by fusing limestone and bauxite? |
| A. | Regular type portland cement |
| B. | High alumina |
| C. | Magnesium oxychloride |
| D. | Portland cement |
| Answer» C. Magnesium oxychloride | |
| 9. |
Which type of cement is used for brick mortar composition? |
| A. | Portland cement |
| B. | High alumina |
| C. | Hydraulic lime |
| D. | Pozzolana |
| Answer» D. Pozzolana | |