MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
During metallurgical operations, n2 causes ___________ |
| A. | hardness to sample |
| B. | softness to sample |
| C. | moisture to sample |
| D. | heat to sample |
| Answer» B. softness to sample | |
| 2. |
% of nitrogen can be determined by the process _________ |
| A. | dulong s formula |
| B. | orsat s apparatus |
| C. | kjeldahl s method |
| D. | fractional distillation |
| Answer» D. fractional distillation | |
| 3. |
Ultimate analysis of coal is also called as _________ |
| A. | quantitative analysis |
| B. | elementary analysis |
| C. | qualitative analysis |
| D. | secondary analysis |
| Answer» D. secondary analysis | |
| 4. |
The moisturizing the coal before introducing into furnace is called as _________ |
| A. | moisturizing |
| B. | filtering |
| C. | tempering |
| D. | combustion |
| Answer» D. combustion | |
| 5. |
The % of the fixed carbon can be given by _________ |
| A. | %C=[loss in weight due to removal of C/weight of coal sample]*100 |
| B. | %C=[weight of coal/12*100] |
| C. | %C=100-(% of ash) |
| D. | %C=100-(% of moisture+% of volatile matter+% of ash) |
| Answer» E. | |
| 6. |
From the raw piece, coal is manufactured by ________ |
| A. | under crushing |
| B. | over crushing |
| C. | perfectly crushed |
| D. | powdered |
| Answer» D. powdered | |