MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not a characteristic of coal? |
| A. | Weathering |
| B. | Slaking index |
| C. | Moisture content |
| D. | Bulk density |
| Answer» D. Bulk density | |
| 2. |
Phosphorous and sulphur content in the coal tend to make a metal brittle. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which type of coals are non-caking in nature? |
| A. | Steam coals |
| B. | Gas coals |
| C. | House coals |
| D. | Pulverised coals |
| Answer» B. Gas coals | |
| 4. |
On which property of coal does the design of bunkers for the storage of coal depends? |
| A. | Specific gravity |
| B. | Bulk density |
| C. | Grindability |
| D. | Friability |
| Answer» C. Grindability | |
| 5. |
Which property of coal is tested in Audibert Arnu test? |
| A. | Bulk density |
| B. | Colour |
| C. | Caking and coking |
| D. | Texture |
| Answer» D. Texture | |
| 6. |
How does the friability of the coal is tested? |
| A. | Drop shatter test |
| B. | Thermal cracking |
| C. | Knocking |
| D. | Proximate analysis |
| Answer» B. Thermal cracking | |
| 7. |
Which type of coals have the highest grindability index? |
| A. | Steam coals |
| B. | Gas coals |
| C. | House coals |
| D. | Pulverised coals |
| Answer» E. | |
| 8. |
Which of the coal have the best heating values in terms of volatile matter? |
| A. | Containing 20% volatile matter |
| B. | Containing 60% volatile matter |
| C. | Containing 30% volatile matter |
| D. | Containing 50% volatile matter |
| Answer» B. Containing 60% volatile matter | |
| 9. |
On what factors does the specific gravity of coal depends? |
| A. | Its calorific value and ash content |
| B. | Its ignition temperature and calorific value |
| C. | Type of coal and ash content |
| D. | Type of coal and calorific value |
| Answer» D. Type of coal and calorific value | |
| 10. |
How does the texture of coal changes with its maturity? |
| A. | Becomes hard, less brittle and moderately tough |
| B. | Becomes hard, more brittle and more tough |
| C. | Becomes hard, more brittle and less tough |
| D. | No change |
| Answer» C. Becomes hard, more brittle and less tough | |