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 mathematical expression of BOD? |
| A. | tBOD = [(D1-D2)-(B1-B2)f]/P |
| B. | tBOD = [(D1-D2)-(B1-B2)f]. |
| C. | tBOD = [(D1-D2) f]/P |
| D. | tBOD = [(D1-D2)-(B1-B2)]/P |
| Answer» B. tBOD = [(D1-D2)-(B1-B2)f]. | |
| 2. |
At what temperature the bottles for the BOD test are incubated? |
| A. | t25 degree Celsius |
| B. | t35 degree Celsius |
| C. | t20 degree Celsius |
| D. | t30 degree Celsius |
| Answer» D. t30 degree Celsius | |
| 3. |
The BOD test is carried out for how many days? |
| A. | t1 day |
| B. | t2 days |
| C. | t5 days |
| D. | t6 days |
| Answer» D. t6 days | |
| 4. |
What is the TSS effluent concentration for 7 days? |
| A. | t30 mg/L |
| B. | t45 mg/L |
| C. | t25 mg/L |
| D. | t40 mg/L |
| Answer» C. t25 mg/L | |
| 5. |
_________ is determined by measuring the dissolved oxygen used by microorganisms during the biochemical oxidation of organic matter in 5 days at 20 C. |
| A. | tBOD5 |
| B. | tCOD |
| C. | tTOC |
| D. | tThOD |
| Answer» B. tCOD | |