MCQOPTIONS
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MCQOPTIONS
This section includes 12 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. |
The test for finding the optimum coagulant dose in water is ____________ |
| A. | Chromatography |
| B. | Jar test |
| C. | Kjeldahl test |
| D. | Dilatancy test |
| Answer» C. Kjeldahl test | |
| 2. |
The detention period for a sedimentation tank where coagulation takes place is ____________ |
| A. | 30 seconds |
| B. | 1 minute |
| C. | 1hour |
| D. | 2hour |
| Answer» E. | |
| 3. |
The overflow rate for a plain sedimentation tank is ______ litre/day/metre2. |
| A. | 50000 |
| B. | 40000 |
| C. | 12000 |
| D. | 30000 |
| Answer» D. 30000 | |
| 4. |
The deviation from the ideal flow of wastewater in the sedimentation tank causes ____________ |
| A. | Whirlpool |
| B. | Increase in tank efficiency |
| C. | Short circuiting |
| D. | Coagulation |
| Answer» D. Coagulation | |
| 5. |
In a rectangular horizontal flow tank, the maximum permissible velocity is ____ m/Sec? |
| A. | 3 |
| B. | 0.3 |
| C. | 0.03 |
| D. | 0.003 |
| Answer» C. 0.03 | |
| 6. |
The quantity of water flowing per hour per unit horizontal area is called ____ |
| A. | Detention time |
| B. | Flowing through period |
| C. | Displacement time |
| D. | Overflow rate |
| Answer» E. | |
| 7. |
The average time required by water to pass through the settling tank is called _______ |
| A. | Detention time |
| B. | Flowing through period |
| C. | Time of flow |
| D. | Mean time |
| Answer» C. Time of flow | |
| 8. |
The test for finding the optimum coagulant dose in water is |
| A. | Chromatography |
| B. | Jar test |
| C. | Kjeldahl test |
| D. | Dilatancy test |
| Answer» C. Kjeldahl test | |
| 9. |
The detention period for a sedimentation tank where coagulation takes place is |
| A. | 30 seconds |
| B. | 1 minute |
| C. | 1hour |
| D. | 2hour |
| Answer» E. | |
| 10. |
The overflow rate for a plain sedimentation tank is ______ litre/day/metre2. |
| A. | 50000 |
| B. | 40000 |
| C. | 12000 |
| D. | 30000 |
| Answer» D. 30000 | |
| 11. |
The deviation from the ideal flow of wastewater in the sedimentation tank causes |
| A. | Whirlpool |
| B. | Increase in tank efficiency |
| C. | Short circuiting |
| D. | Coagulation |
| Answer» D. Coagulation | |
| 12. |
Which of the following cannot be the velocity of flow in the horizontal flow sedimentation tank? |
| A. | 12cm/min |
| B. | 39cm/min |
| C. | 5cm/min |
| D. | 20cm/min |
| Answer» C. 5cm/min | |