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This section includes 182 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. |
Surface water can act as a source of water in water supply scheme. |
A. | true |
B. | false |
Answer» B. false | |
152. |
Which of the following can be identified as the objective of water supply scheme? |
A. | chlorination of water |
B. | treat water |
C. | safe water supply |
D. | ionization of water |
Answer» D. ionization of water | |
153. |
The maximum discharging capacity of a retarding reservoir should not be equal to the maximum safe carrying capacity of the channel downstream. |
A. | true |
B. | false |
Answer» C. | |
154. |
As the reservoir elevation increases, the outflow discharge increases. |
A. | true |
B. | false |
Answer» B. false | |
155. |
What are the types of flood control reservoirs? |
A. | multipurpose reservoir and single purpose reservoir |
B. | storage reservoir and retarding reservoirs |
C. | distribution reservoir and storage reservoir |
D. | distribution reservoir and multipurpose reservoir |
Answer» C. distribution reservoir and storage reservoir | |
156. |
In which of the following reservoir the flood crest downstream can be better controlled and regulated properly? |
A. | distribution reservoir |
B. | multipurpose reservoir |
C. | storage reservoir |
D. | retarding reservoir |
Answer» D. retarding reservoir | |
157. |
Which reservoir is helpful in permitting the pumps or the water treatment plants to work at a uniform rate? |
A. | storage reservoir |
B. | detention reservoir |
C. | multipurpose reservoir |
D. | distribution reservoir |
Answer» E. | |
158. |
A reservoir having gates and valves installation at its spillway and at its sluice outlets |
A. | storage reservoir |
B. | retarding basin |
C. | both storage and retarding reservoir |
D. | distribution reservoir |
Answer» B. retarding basin | |
159. |
In which of the following units, design period is maximized? |
A. | distribution system |
B. | demand reservoir |
C. | water treatment unit |
D. | pipe mains |
Answer» C. water treatment unit | |
160. |
Which reservoir is also known as Mitigation reservoir? |
A. | conservation reservoir |
B. | flood control reservoir |
C. | multipurpose dam |
D. | storage reservoir |
Answer» C. multipurpose dam | |
161. |
A hydel power project has been envisaged to serve the water supply and irrigation needs of the area at its inception stage. The dam reservoir so constructed is known as |
A. | multipurpose reservoir |
B. | single-purpose reservoir |
C. | distribution reservoir |
D. | retarding reservoir |
Answer» B. single-purpose reservoir | |
162. |
What is the design discharge for intake structures? |
A. | maximum daily demand |
B. | maximum hourly demand |
C. | maximum weekly demand |
D. | average daily demand |
Answer» B. maximum hourly demand | |
163. |
What is the design period for the water treatment unit? |
A. | 10 years |
B. | 15 years |
C. | 20 years |
D. | 30 years |
Answer» C. 20 years | |
164. |
If in a city, the maximum daily draft is 25MLD, fire draft is 35MLD and maximum hourly draft is 40MLD, what is the coincident draft? |
A. | 60mld |
B. | 40mld |
C. | 25mld |
D. | 35mld |
Answer» B. 40mld | |
165. |
If the annual average hourly demand of the city is 10000m3, what is the maximum hourly consumption? |
A. | 2700 m3 |
B. | 27000 m3 |
C. | 270000 m3 |
D. | 2700000 m3 |
Answer» B. 27000 m3 | |
166. |
What are the factors affecting per capita demand? |
A. | size of city |
B. | size of city, habit of people |
C. | cost of water, quality of water, size of city |
D. | cost of water, quality of water, size of city, habit of people |
Answer» E. | |
167. |
What is the fire demand of the city of 1lakh population by Buston’s formula? |
A. | 5663 |
B. | 56630 |
C. | 566300 |
D. | 5663000 |
Answer» C. 566300 | |
168. |
Water lost in theft and waste contributes to how much % of total consumption? |
A. | 5 |
B. | 10 |
C. | 15 |
D. | 20 |
Answer» D. 20 | |
169. |
In which type of water demand, minimum average consumption of water takes place? |
A. | domestic water demand |
B. | industrial water demand |
C. | institutional and commercial water demand |
D. | fire demand |
Answer» E. | |
170. |
The average consumption of water required in factories in lpcd is |
A. | 10-15 |
B. | 20-30 |
C. | 30-45 |
D. | 70-80 |
Answer» D. 70-80 | |
171. |
When depth of insertion of turbidity rod increases, the reading in the turbidity rod |
A. | decreases |
B. | increases |
C. | first decrease, then increase |
D. | remains constant |
Answer» B. increases | |
172. |
What is the full form of NTU in context with turbidity? |
A. | number of transfer unit |
B. | neurological turbidity unit |
C. | nephelometric turbidity unit |
D. | network terminal unit |
Answer» D. network terminal unit | |
173. |
The permissible limit of turbidity of domestic water is          ppm. |
A. | 5-10 |
B. | 1-5 |
C. | 10-50 |
D. | 10-30 |
Answer» B. 1-5 | |
174. |
If the PO value is 6, what does it imply? |
A. | no perceptible odour |
B. | very faint odour |
C. | very distinct odour |
D. | extremely strong odour |
Answer» E. | |
175. |
One JTU is equivalent to turbidity produced by |
A. | 1mg of fine silica dissolved in 1l of distilled water |
B. | 1g of fine silica dissolved in 1l of distilled water |
C. | 1g of fine silica dissolved in 1ml of distilled water |
D. | 1mg of fine silica dissolved in 1ml of distilled water |
Answer» B. 1g of fine silica dissolved in 1l of distilled water | |
176. |
Threshold odour number testing is preferred in hot water. |
A. | true |
B. | false |
Answer» C. | |
177. |
1 TCU (True Color Unit) is equivalent to |
A. | the color produced by 1 g of platinum cobalt |
B. | the color produced by 1 mg of platinum cobalt |
C. | the color produced by 1 mg of platinum cobalt in 1l of distilled water |
D. | the color produced by 1 mg of platinum cobalt in 1ml of distilled water |
Answer» D. the color produced by 1 mg of platinum cobalt in 1ml of distilled water | |
178. |
Which method is used to measure the color of water? |
A. | gravimetric analysis |
B. | chromatography |
C. | tintometer method |
D. | hydrometer analysis |
Answer» D. hydrometer analysis | |
179. |
Identify the correct relation between the following? |
A. | dissolved solid = total solid + suspended solid |
B. | dissolved solid = total solid – suspended solid |
C. | total solid = dissolved solid / suspended solid |
D. | dissolved solid = suspended solid – total solid |
Answer» C. total solid = dissolved solid / suspended solid | |
180. |
The maximum permissible limit for suspended solids is |
A. | 10 mg/l |
B. | 20 mg/l |
C. | 30 mg/l |
D. | 40 mg/l |
Answer» D. 40 mg/l | |
181. |
Suspended solids are measured by which of the following? |
A. | turbidity rod |
B. | gravimetric test |
C. | chromatography |
D. | jackson’s turbidity meter |
Answer» C. chromatography | |
182. |
The size of suspended solids lies in the range of |
A. | 10-3 – 10-6 mm |
B. | 103 – 106 mm |
C. | 10-1 – 10-3 mm |
D. | 101 – 103 mm |
Answer» D. 101 – 103 mm | |