MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Identify the correct statement regarding the Electrostatic precipitator. |
| A. | Minimum particle size removal is <0.5μm |
| B. | They can be operated at high temperature |
| C. | It has a low maintenance cost |
| D. | It does not cause any freezing problem |
| Answer» C. It has a low maintenance cost | |
| 2. |
Which of the following is incorrect regarding the fabric filter? |
| A. | They can remove very small particle |
| B. | They are liable to chemical attack |
| C. | They have low efficiency in comparison to venturi scrubber |
| D. | They can handle large volume of gas at relatively high speed |
| Answer» D. They can handle large volume of gas at relatively high speed | |
| 3. |
Identify the correct statement regarding Electrostatic precipitator? |
| A. | Minimum particle size removal is <0.5μm |
| B. | They can be operated at high temperature |
| C. | It has low maintenance cost |
| D. | It does not cause any freezing problem |
| Answer» C. It has low maintenance cost | |
| 4. |
Which of the following removes both gaseous and particulate contaminants? |
| A. | Venturi scrubber |
| B. | Gravitational settling chamber |
| C. | Dynamic precipitator |
| D. | Wet scrubber |
| Answer» B. Gravitational settling chamber | |
| 5. |
Which of the following is incorrect regarding fabric filter? |
| A. | They can remove very small particle |
| B. | They are liable to chemical attack |
| C. | They have low efficiency in comparison to venturi scrubber |
| D. | They can handle large volume of gas at relatively high speed |
| Answer» D. They can handle large volume of gas at relatively high speed | |
| 6. |
Which of the following fluid is used in web scrubbers? |
| A. | Lime |
| B. | MgSO<sub>4</sub> |
| C. | NaCl |
| D. | K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub> |
| Answer» B. MgSO<sub>4</sub> | |
| 7. |
Which of the following air pollution control device has maximum efficiency? |
| A. | Electrostatic precipitator |
| B. | Dynamic precipitator |
| C. | Spray tower |
| D. | Wet cyclonic scrubber |
| Answer» B. Dynamic precipitator | |
| 8. |
The centrifugal collectors are classified into how many types? |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 2 |
| Answer» E. | |
| 9. |
Wet scrubbers are classified into ____ types. |
| A. | 2 |
| B. | 3 |
| C. | 5 |
| D. | 6 |
| Answer» C. 5 | |
| 10. |
Which of the following is used in ceramic industries? |
| A. | Electrostatic precipitator |
| B. | Dynamic precipitator |
| C. | Spray tower |
| D. | Wet cyclonic scrubber |
| Answer» C. Spray tower | |