MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the denitrification rate for the following data?Temperature: 10 degree Celsius |
| A. | nDissolved oxygen: 10mg/L |
| B. | t0.038 per day |
| C. | t0.0038 per day |
| D. | t0.38 per day |
| E. | t3.8 per day |
| Answer» B. t0.038 per day | |
| 2. |
What is the minimum temperature required for denitrification process? |
| A. | t3 C |
| B. | t5 C |
| C. | t15 C |
| D. | t30 C |
| Answer» C. t15 C | |
| 3. |
What is the optimum pH for nitrosomonas? |
| A. | t6.5-7.5 |
| B. | t7.5-8.5 |
| C. | t9.5-10.5 |
| D. | t13.5-14 |
| Answer» C. t9.5-10.5 | |
| 4. |
What is the minimum amount of dissolved oxygen required for nitrification? |
| A. | t0.5 mg/L |
| B. | t1.0 mg/L |
| C. | t1.5 mg/L |
| D. | t2.0 mg/L |
| Answer» C. t1.5 mg/L | |
| 5. |
What is the process for converting organic-nitrogen to ammonia? |
| A. | tHydrolysis |
| B. | tNitrification |
| C. | tDenitrification |
| D. | tOxidation |
| Answer» B. tNitrification | |