MCQOPTIONS
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MCQOPTIONS
This section includes 16 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. |
Which of these screens have a very large footprint? |
| A. | Reciprocating |
| B. | Continuous belt |
| C. | Catenary |
| D. | Chain driven |
| Answer» D. Chain driven | |
| 2. |
From which of these type of screens there is a possibility of odour emission? |
| A. | Catenary |
| B. | Reciprocating rake |
| C. | Continuous belt |
| D. | Chain driven screen |
| Answer» B. Reciprocating rake | |
| 3. |
Which of these screens can handle very large particles? |
| A. | Reciprocating rake |
| B. | Continuous belt |
| C. | Front clean/Front return |
| D. | Front clean/back return |
| Answer» B. Continuous belt | |
| 4. |
At what angle generally a coarse manual screen is placed? |
| A. | 60 degree |
| B. | 50 degree |
| C. | 65-70 degree |
| D. | 30-45 degree |
| Answer» E. | |
| 5. |
What is the maximum allowable head loss for a manual coarse screen? |
| A. | 150mm |
| B. | 300 mm |
| C. | 200 mm |
| D. | 100mm |
| Answer» B. 300 mm | |
| 6. |
The head lost by water flowing in a channel as a result of turbulence caused by the velocity of the flowing water is called ________ |
| A. | Putrefaction |
| B. | Buffer |
| C. | Head |
| D. | Head loss |
| Answer» E. | |
| 7. |
Which of the following does the quantity of screening does not depend on? |
| A. | Type of rack |
| B. | Type of screen |
| C. | Type of sewer system |
| D. | Temperature |
| Answer» E. | |
| 8. |
What is the approach velocity for grit bearing wastewaters? |
| A. | 0.2-0.3 m/s |
| B. | 0.6-0.75 m/s |
| C. | 0.5-0.75 m/s |
| D. | 0.45-0.60 m/s |
| Answer» C. 0.5-0.75 m/s | |
| 9. |
Lower the velocity through the screen, the ________ is the amount of screening that would be removed. |
| A. | Lower |
| B. | Greater |
| C. | Lesser |
| D. | Stronger |
| Answer» C. Lesser | |
| 10. |
How many types of screens are present? |
| A. | 3 |
| B. | 4 |
| C. | 2 |
| D. | 5 |
| Answer» D. 5 | |
| 11. |
__________ wastewater treatment plant may or may not need the screens. |
| A. | Domestic |
| B. | Industrial |
| C. | Sewage |
| D. | Chemical |
| Answer» C. Sewage | |
| 12. |
Screen is the first unit operation in wastewater treatment plant. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
Which of the following is true for screens and comminutors? |
| A. | Unit operation |
| B. | Unit process |
| C. | Chemical treatment |
| D. | pH balancer |
| Answer» B. Unit process | |
| 14. |
Installing screens at an angle allows easier cleaning. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 15. |
In drum type screen, which axis does the drum rotate? |
| A. | Horizontal |
| B. | Vertical |
| C. | Irregular |
| D. | Horizo-vertical |
| Answer» B. Vertical | |
| 16. |
What is the opening of fine screens? |
| A. | 0.5 inch |
| B. | 1 inch |
| C. | 0.25 inch |
| D. | 0.15 inch |
| Answer» D. 0.15 inch | |