MCQOPTIONS
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MCQOPTIONS
This section includes 17 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. |
Which color is formed when orthotolidine is oxidized by chlorine? |
| A. | Yellow |
| B. | Orange |
| C. | Green |
| D. | Blue |
| Answer» B. Orange | |
| 2. |
The process of removal of excess chlorine from water is ____________ |
| A. | Plain chlorination |
| B. | Dechlorination |
| C. | Super chlorination |
| D. | Double chlorination |
| Answer» C. Super chlorination | |
| 3. |
_______ is the application of chlorine beyond the stage of the break point. |
| A. | Plain chlorination |
| B. | Pre chlorination |
| C. | Super chlorination |
| D. | Double chlorination |
| Answer» D. Double chlorination | |
| 4. |
The normal dose of chlorine during break point chlorination is ____________ |
| A. | 0.5-1ppm |
| B. | 0.1-0.2ppm |
| C. | 3-7ppm |
| D. | 1-2ppm |
| Answer» C. 3-7ppm | |
| 5. |
The normal dose of chlorine during post chlorination is ___________ |
| A. | 0.5-1ppm |
| B. | 0.1-0.2ppm |
| C. | 0.1-0.5ppm |
| D. | 1-2ppm |
| Answer» C. 0.1-0.5ppm | |
| 6. |
The normal dose of chlorine during pre chlorination is ___________ |
| A. | 0.5-1ppm |
| B. | 0.1-0.2ppm |
| C. | 0.1-0.5ppm |
| D. | 1-2ppm |
| Answer» D. 1-2ppm | |
| 7. |
The normal dose of chlorine during plain chlorination is ___________ |
| A. | 0.5-1ppm |
| B. | 0.1-0.2ppm |
| C. | 0.1-0.5ppm |
| D. | 1-2ppm |
| Answer» B. 0.1-0.2ppm | |
| 8. |
________IS_THE_APPLICATION_OF_CHLORINE_BEYOND_THE_STAGE_OF_THE_BREAK_POINT.?$ |
| A. | Plain chlorination |
| B. | Pre chlorination |
| C. | Super chlorination |
| D. | Double chlorination |
| Answer» D. Double chlorination | |
| 9. |
Which color is formed when orthotolidine is oxidized by chlorine?$ |
| A. | Yellow |
| B. | Orange |
| C. | Green |
| D. | Blue |
| Answer» B. Orange | |
| 10. |
The process of removal of excess chlorine from water is$ |
| A. | Plain chlorination |
| B. | Dechlorination |
| C. | Super chlorination |
| D. | Double chlorination |
| Answer» C. Super chlorination | |
| 11. |
Which of the following regarding break point chlorination is wrong? |
| A. | It will have adequate chlorine residual |
| B. | It will remove manganese |
| C. | It will remove taste and odor |
| D. | It is determined by physical test |
| Answer» E. | |
| 12. |
The normal dose of chlorine during break point chlorination is |
| A. | 0.5-1ppm |
| B. | 0.1-0.2ppm |
| C. | 3-7ppm |
| D. | 1-2ppm |
| Answer» C. 3-7ppm | |
| 13. |
__________ is the application of chlorine at two or more points in the purification process. |
| A. | Plain chlorination |
| B. | Pre chlorination |
| C. | Super chlorination |
| D. | Double chlorination |
| Answer» E. | |
| 14. |
_________ is the application of chlorine before filtration. |
| A. | Plain chlorination |
| B. | Pre chlorination |
| C. | Super chlorination |
| D. | Double chlorination |
| Answer» C. Super chlorination | |
| 15. |
In which form of chlorination, chlorine applies to raw water supply as it enters the distribution system? |
| A. | Plain chlorination |
| B. | Pre chlorination |
| C. | Super chlorination |
| D. | Double chlorination |
| Answer» B. Pre chlorination | |
| 16. |
The normal dose of chlorine during pre chlorination is |
| A. | 0.5-1ppm |
| B. | 0.1-0.2ppm |
| C. | 0.1-0.5ppm |
| D. | 1-2ppm |
| Answer» D. 1-2ppm | |
| 17. |
The normal dose of chlorine during plain chlorination is |
| A. | 0.5-1ppm |
| B. | 0.1-0.2ppm |
| C. | 0.1-0.5ppm |
| D. | 1-2ppm |
| Answer» B. 0.1-0.2ppm | |