MCQOPTIONS
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MCQOPTIONS
This section includes 167 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
For normal sludge, the value of sludge index for Indian conditions is |
| A. | 0 to 50 |
| B. | 50 to 150 |
| C. | 150 to 350 |
| D. | 350 to 500 |
| Answer» D. 350 to 500 | |
| 152. |
The percentage of filtered water, which is used for backwashing in rapid sand filters, is about |
| A. | 0.2 to 0.4 |
| B. | 0.4 to 1.0 |
| C. | 2 to 4 |
| D. | 5 to 7 |
| Answer» D. 5 to 7 | |
| 153. |
Which of the following is not a water borne disease? |
| A. | Dysentery |
| B. | Cholera |
| C. | Typhoid |
| D. | Malaria |
| Answer» E. | |
| 154. |
As compared to geometrical increase method of forecasting population, arithmetical increase method gives |
| A. | Lesser value |
| B. | Higher value |
| C. | Same value |
| D. | Accurate value |
| Answer» B. Higher value | |
| 155. |
The method of analysis of distribution system in which the domestic supply is neglected and fire demand is considered is |
| A. | Circle method |
| B. | Equivalent pipe method |
| C. | Electrical analysis method |
| D. | Hardy cross method |
| Answer» B. Equivalent pipe method | |
| 156. |
The time of concentration is defined as |
| A. | The time taken by rainfall water to run from most distant point of water shed to the inlet of sewer |
| B. | The time required for flow of water in sewer to the point under consideration |
| C. | Sum of (A) and (B) |
| D. | Difference of (A) and (B) |
| Answer» D. Difference of (A) and (B) | |
| 157. |
When there is no recirculation of sewage, then recirculation factor is |
| A. | 0 |
| B. | 1 |
| C. | Infinity |
| D. | None of the above |
| Answer» C. Infinity | |
| 158. |
The main disadvantage of oxidation pond is that |
| A. | Large area is required for construction |
| B. | Maintenance and operation cost are high |
| C. | BOD removal is very low |
| D. | None of the above |
| Answer» B. Maintenance and operation cost are high | |
| 159. |
Assertion A: Slow sand filters are more efficient in removal of bacteria than rapid sand filters.Reason R: The sand used in slow sand filters is finer than that in rapid sand filtersSelect your answer based on the coding system given below: |
| A. | Both A and R is true and R is the correct explanation of A |
| B. | Both A and R is true but R is not the correct explanation of A |
| C. | A is true but R is false |
| D. | A is false but R is true |
| Answer» B. Both A and R is true but R is not the correct explanation of A | |
| 160. |
The detention period for oxidation ponds is usually kept as |
| A. | 48 hours |
| B. | 24 hours |
| C. | 10 to 15 days |
| D. | 3 months |
| Answer» D. 3 months | |
| 161. |
The per capital consumption of a locality is affected by (i) Climatic conditions (ii) Quality of water (iii) Distribution pressure |
| A. | Only (i) |
| B. | Both (i) and (ii) |
| C. | Both (i) and (iii) |
| D. | All (i), (ii) and (iii) |
| Answer» E. | |
| 162. |
The process of lagooning is primarily a means of |
| A. | Reducing the excessive flow in sewers |
| B. | Disposing of sludge |
| C. | Increasing the capacity of storage reservoirs |
| D. | Increasing flow of sewage through imhoff tanks |
| Answer» C. Increasing the capacity of storage reservoirs | |
| 163. |
The suitable system of sanitation for area of distributed rainfall throughout the year with less intensity is |
| A. | Separate system |
| B. | Combined system |
| C. | Partially separate system |
| D. | Partially combined system |
| Answer» C. Partially separate system | |
| 164. |
The effect of increasing diameter of sewer on the self cleansing velocity is |
| A. | To decrease it |
| B. | To increase it |
| C. | Fluctuating |
| D. | Nil |
| Answer» C. Fluctuating | |
| 165. |
The population of a town in three consecutive years are 5000, 7000 and 8400 respectively. The population of the town in the fourth consecutive year according to geometrical increase method is |
| A. | 9500 |
| B. | 9800 |
| C. | 10100 |
| D. | 10920 |
| Answer» E. | |
| 166. |
The velocity of flow does not depend on |
| A. | Grade of sewer |
| B. | Length of sewer |
| C. | Hydraulic mean depth of sewer |
| D. | Roughness of sewer |
| Answer» C. Hydraulic mean depth of sewer | |
| 167. |
Which of the following causes a decrease in per capita consumption? |
| A. | Use of metering system |
| B. | Good quality of water |
| C. | Better standard of living of the people |
| D. | Hotter climate |
| Answer» B. Good quality of water | |