MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Waste Water Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The first chamber in a septic tank should be at least ______ of the total length. |
| A. | 10 % |
| B. | 20 % |
| C. | 35 % |
| D. | 50 % |
| Answer» E. | |
| 2. |
WHICH_OF_THE_FOLLOWING_REASONS_IS_CORRECT_WITH_RESPECT_TO_THE_NEED_OF_PROVIDING_BAFFLE_WALLS??$ |
| A. | Mixing of scum and wastewater |
| B. | Settling of heavy particles |
| C. | Increase velocity of the liquid |
| D. | Prevent scum and solids from escaping |
| Answer» E. | |
| 3. |
What is the mixture of methane and carbon-dioxide of anaerobic digestion called?$ |
| A. | Waste gases |
| B. | Poisonous gas |
| C. | Biogas |
| D. | Carbo-methane |
| Answer» D. Carbo-methane | |
| 4. |
What are the product gases of anaerobic digestion?$ |
| A. | Carbon-dioxide and methane |
| B. | Methane and oxygen |
| C. | Oxygen and carbon-dioxide |
| D. | Nitrogen and methane |
| Answer» B. Methane and oxygen | |
| 5. |
The first chamber in a septic tank should be at least ______ of the total length? |
| A. | 10 % |
| B. | 20 % |
| C. | 35 % |
| D. | 50 % |
| Answer» E. | |
| 6. |
What is the amount of water used per person per day for flushing? |
| A. | 2-3 L |
| B. | 3-10 L |
| C. | 4-30 L |
| D. | 5-40 L |
| Answer» E. | |
| 7. |
During the disposal of the sludge, it must be ______ |
| A. | Liquefied |
| B. | Dried |
| C. | Burned |
| D. | Fluidized |
| Answer» C. Burned | |
| 8. |
Which of the following methods are not used for the dispersion of the effluent out of a septic tank? |
| A. | Wetlands |
| B. | Soak pit |
| C. | Evapo-transpiration mound |
| D. | Leach field |
| Answer» B. Soak pit | |
| 9. |
The scum formed in the tank _____ |
| A. | Flows |
| B. | Gets dissolved |
| C. | Sink into the bottom |
| D. | Floats on top |
| Answer» E. | |
| 10. |
The heavy particles in the tank _____ |
| A. | Float |
| B. | Sink into the bottom |
| C. | Separated using magnetic methods |
| D. | Flow along liquid |
| Answer» C. Separated using magnetic methods | |
| 11. |
The shape of the tank is circular. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
Septic tank is a small scale treatment unit. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
Which of the following materials is not used in the construction of a septic tank? |
| A. | Concrete |
| B. | Rubber |
| C. | Fibreglass |
| D. | Plastic |
| Answer» C. Fibreglass | |