MCQOPTIONS
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MCQOPTIONS
This section includes 5 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. |
What is the optimum temperature at which anaerobic digestion is carried out? |
| A. | t25-35 degree Celsius |
| B. | t55 degree Celsius |
| C. | t45 degree Celsius |
| D. | t40-50 degree Celsius |
| Answer» B. t55 degree Celsius | |
| 2. |
In anaerobic digestion system which of the following statement holds good? |
| A. | tAcids are necessary to be added to make the pH neutral |
| B. | tAlkalines are necessary to be added to make the pH neutral |
| C. | tA flocculant is to be added to bring about flocculation |
| D. | tA coagulant is necessary to be added in order to bring about coagulation |
| Answer» C. tA flocculant is to be added to bring about flocculation | |
| 3. |
How much is the cow yield from anaerobic digestion that can be obtained? |
| A. | t0.1 m<sup>3</sup>/Kg dung |
| B. | t0.2 m<sup>3</sup>/Kg dung |
| C. | t0.3 m<sup>3</sup>/Kg dung |
| D. | t0.4 m<sup>3</sup>/Kg dung |
| Answer» E. | |
| 4. |
What is the range of retention time during anaerobic digestion? |
| A. | t10-20 days |
| B. | t20-30 days |
| C. | t40-80 days |
| D. | t40-100 days |
| Answer» E. | |
| 5. |
The pathogens in digestate are _________ |
| A. | tHighly active |
| B. | tInactive |
| C. | tPartly inactive |
| D. | tNeutral |
| Answer» D. tNeutral | |