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. |
Which of the following is considered if sewers are placed on the softer grounds? |
| A. | The trench is excavated to confirm the shape of the pipe |
| B. | Sewers are laid embedded in the concrete |
| C. | The width of the trench is kept to 15 cm |
| D. | The desired slope is considered |
| Answer» C. The width of the trench is kept to 15 cm | |
| 2. |
The depth in open drain should preferably be kept _______ the man height. |
| A. | Less than |
| B. | Greater than |
| C. | Equal to |
| D. | Sufficient to |
| Answer» B. Greater than | |
| 3. |
Storm water is collected from streets into the __________ which in turn discharged into main drains of open type. |
| A. | Link drains |
| B. | Lateral drains |
| C. | Sub mains |
| D. | Interseptal mains |
| Answer» B. Lateral drains | |
| 4. |
THE_DEPTH_IN_OPEN_DRAIN_SHOULD_PREFERABLY_BE_KEPT_________THE_MAN_HEIGHT.?$ |
| A. | Less than |
| B. | Greater than |
| C. | Equal to |
| D. | Sufficient to |
| Answer» B. Greater than | |
| 5. |
Which_of_the_following_is_considered_if_sewers_are_placed_on_the_softer_grounds?$ |
| A. | The trench is excavated to confirm the shape of the pipe |
| B. | Sewers are laid embedded in the concrete |
| C. | The width of the trench is kept to 15 cm |
| D. | The desired slope is considered |
| Answer» C. The width of the trench is kept to 15 cm | |
| 6. |
Storm water is collected from streets into the __________ which in turn discharged into main drains of open type? |
| A. | Link drains |
| B. | Lateral drains |
| C. | Sub mains |
| D. | Interseptal mains |
| Answer» B. Lateral drains | |
| 7. |
The increasing flow velocity in water systems not only creates noise but also leads to the wear and tear of the pipes. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
What is the maximum allowable velocity in public water mains? |
| A. | 3 ft/sec |
| B. | 8 ft/sec |
| C. | 10 ft/sec |
| D. | 12 ft/sec |
| Answer» C. 10 ft/sec | |
| 9. |
Exceeding 10 ft/sec may increase the likelihood of hydraulic surges. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
What is the minimum velocity required in sewers to keep the foreign particles from settling? |
| A. | 3 ft/sec |
| B. | 5 ft/sec |
| C. | 10 ft/sec |
| D. | 12 ft/sec |
| Answer» B. 5 ft/sec | |
| 11. |
Which of these equations is used to calculate the water velocity inside of a pipe? |
| A. | A=Q/I |
| B. | V=0.408 Q/ D<sup>2</sup> |
| C. | L=C*Q |
| D. | Q=A*V |
| Answer» C. L=C*Q | |
| 12. |
What is the maximum velocity of tap water such that the flow causes low noise? |
| A. | 0.2-0.3 m/s |
| B. | 0.5-0.7 m/s |
| C. | 1.0-2.5 m/s |
| D. | 1.5-2.5 m/s |
| Answer» C. 1.0-2.5 m/s | |
| 13. |
The maximum velocity in a channel section often occurs _______ the water surface. |
| A. | Above |
| B. | Below |
| C. | Between |
| D. | Top |
| Answer» C. Between | |