MCQOPTIONS
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MCQOPTIONS
This section includes 515 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
For a standing crop, the consumptive use of water is equal to the depth of water |
| A. | Transpired by the crop |
| B. | Evaporated by the crop |
| C. | Transpired and evaporated by the crop |
| D. | Used by the crop in transpiration, evaporation and also the quantity of water evaporated from adjacent soil |
| Answer» E. | |
| 202. |
The top of the capillary zone |
| A. | Lies below the water table at every point |
| B. | Lies above the water table at every point |
| C. | Coincides the water table at every point |
| D. | None of these |
| Answer» C. Coincides the water table at every point | |
| 203. |
Attracting groynes are built |
| A. | Perpendicular to the bank |
| B. | Inclined down stream |
| C. | Inclined up stream |
| D. | None of these |
| Answer» C. Inclined up stream | |
| 204. |
A hydraulic structure is designed to withstand |
| A. | Seepage forces |
| B. | Hydraulic jump |
| C. | Hydraulic pressure |
| D. | All the above |
| Answer» E. | |
| 205. |
The measure to remove water logging of land, is |
| A. | To reduce percolation from canals and water courses |
| B. | To increase outflow from the ground water reservoir |
| C. | Both (A) and (B) |
| D. | Neither (A) nor (B) |
| Answer» D. Neither (A) nor (B) | |
| 206. |
Vertical drop fall is satisfactory for a height upto |
| A. | 0.5 m |
| B. | 1.5 m |
| C. | 3.5 m |
| D. | 5.0 m |
| Answer» C. 3.5 m | |
| 207. |
Which of the following is a flexible outlet ? |
| A. | submerged pipe outlet |
| B. | Kennedy’s gauge outlet |
| C. | Gibb’s outlet |
| D. | none of the above |
| Answer» C. Gibb’s outlet | |
| 208. |
Infiltration is the |
| A. | movement of water through the soil |
| B. | absorption of water by soil surface |
| C. | both (A) and (B) |
| D. | none of the above |
| Answer» B. absorption of water by soil surface | |
| 209. |
The runoff increases with |
| A. | increase in intensity of rain |
| B. | increase in infiltration capacity |
| C. | increase in permeability of soil |
| D. | all of the above |
| Answer» B. increase in infiltration capacity | |
| 210. |
As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at |
| A. | lower level |
| B. | higher level |
| C. | same level |
| D. | any of the above depending on the design |
| Answer» B. higher level | |
| 211. |
Bligh's theory of seepage assumes |
| A. | Equal weightage to the horizontal and vertical creep |
| B. | More weightage to horizontal creep than vertical creep |
| C. | Less weightage to horizontal creep than vertical creep |
| D. | Loss of head follows the sine curve |
| Answer» B. More weightage to horizontal creep than vertical creep | |
| 212. |
In a barrage, the crest level is kept |
| A. | Low with large gates |
| B. | High with large gates |
| C. | High with no gates |
| D. | Low with no gates |
| Answer» B. High with large gates | |
| 213. |
A river bend characterized by silting |
| A. | scouring on concave side |
| B. | silting on convex side |
| C. | scouring on convex side and on concave side |
| D. | scouring on concave side and silting on convex side |
| Answer» E. | |
| 214. |
Optimum depth of kor watering for rice is |
| A. | 135 mm |
| B. | 165 mm |
| C. | 190 mm |
| D. | 215 mm |
| Answer» D. 215 mm | |
| 215. |
Meandering of a river generally occurs, in |
| A. | Rocky stage |
| B. | Delta stage |
| C. | Boulder stage |
| D. | Trough stage |
| Answer» E. | |
| 216. |
The downstream expansion head of a guide bank is extended to subtend an angle at the centre, equal to |
| A. | 30° |
| B. | 45° |
| C. | 60° |
| D. | 90° |
| Answer» C. 60° | |
| 217. |
The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called |
| A. | Syphon |
| B. | Super passage |
| C. | Super-aqueduct |
| D. | Syphon aqueduct |
| Answer» E. | |
| 218. |
The difference in level between the top of a bank and supply level in a canal, is called |
| A. | Berm |
| B. | Free board |
| C. | Height of bank |
| D. | None of these |
| Answer» C. Height of bank | |
| 219. |
Lane's weighted creep theory assumes |
| A. | Equal weightage to horizontal and vertical creeps |
| B. | Double weightage to horizontal creep and one weightage to vertical creep |
| C. | Triple weightage to horizontal creep and one weightage to vertical creep |
| D. | Triple weightage to vertical creep and one weightage to horizontal creep |
| Answer» E. | |
| 220. |
If D is the depth of scour below original bed, then the width of launching apron is generally taken as |
| A. | 1.2 D |
| B. | 1.5 D |
| C. | 2.0 D |
| D. | 2.5 D |
| Answer» C. 2.0 D | |
| 221. |
A current meter is used to measure the |
| A. | velocity of flow of water |
| B. | depth of flow of water |
| C. | discharge |
| D. | none of the above |
| Answer» B. depth of flow of water | |
| 222. |
To estimate the magnitude of a flood with a return period of T years, Gumbel’s distribution method requires the following data pertaining to annual flood seriesi) mean valueii) standard deviationiii) length of recordiv) coefficient of skewThe correct answer is |
| A. | (i) and (ii) |
| B. | (i),(ii) and (iii) |
| C. | (i), (ii) and (iv) |
| D. | (i), (ii), (iii) and (iv) |
| Answer» C. (i), (ii) and (iv) | |
| 223. |
According to G.W. Pickles the effect of confining the flood water of a river between levee, is to increase |
| A. | Rate of flood wave |
| B. | Water surface elevation during floods |
| C. | Maximum discharge |
| D. | Surface slope of streams above the levied portion |
| Answer» E. | |
| 224. |
When a canal and a drainage approach each other at the same level, the structure so provided, is |
| A. | An aqueduct |
| B. | A syphon |
| C. | A level crossing |
| D. | Inlet and outlet |
| Answer» D. Inlet and outlet | |
| 225. |
Groynes are generally built |
| A. | Perpendicular to the bank |
| B. | Inclined up stream up to 30° |
| C. | Inclined downstream up to 30° |
| D. | All the above |
| Answer» C. Inclined downstream up to 30° | |
| 226. |
The duty is largest |
| A. | at the head of water course |
| B. | on the field |
| C. | at the head of a main canal |
| D. | same at all places |
| Answer» C. at the head of a main canal | |
| 227. |
Disposal of extra excavated earth of canals, is utilized to provide a spoil bank on |
| A. | Left side |
| B. | Right side |
| C. | Both sides |
| D. | All the above |
| Answer» E. | |
| 228. |
The main function of a divide wall is to |
| A. | control the silt entry in the canal |
| B. | prevent river floods from entering the canal |
| C. | separate the undersluices from weir proper |
| D. | provide smooth flow at sufficiently low velocity |
| Answer» D. provide smooth flow at sufficiently low velocity | |
| 229. |
If D₁ and D₂ are depths of water upstream and downstream of a hydraulic jump, the loss of head at the jump, is |
| A. | (D₂ - D₁)3/D₁D₂ |
| B. | (D₂ - D₁)3/2D₁D₂ |
| C. | (D₂ - D₁)3/3D₁D₂ |
| D. | (D₂ - D₁)3/4D₁D₂ |
| Answer» E. | |
| 230. |
If straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle θ with horizontal, the area of its cross-section, is |
| A. | R (θ + tan θ) |
| B. | R (θ + cot θ) |
| C. | R2 (θ + tan θ) |
| D. | R2 (θ + cot θ) |
| Answer» E. | |
| 231. |
Interception losses are due toi) evaporationii) transpirationiii) stream flowThe correct answer is |
| A. | only (i) |
| B. | (i)and(ii) |
| C. | (ii) and (iii) |
| D. | (i), (ii) and (iii) |
| Answer» B. (i)and(ii) | |
| 232. |
The ratio of rate of change of the discharge of an outlet to the rate of change of the discharge of distributing channel is called |
| A. | proportionality |
| B. | flexibility |
| C. | setting |
| D. | sensitivity |
| Answer» C. setting | |
| 233. |
If Δ is the depth of water in metres, B is the number of days of base period and D is the duty in hectare/cumec, the relationship which holds good, is |
| A. | D = Δ (8.64 D/B) |
| B. | B = Δ (8.64 B/D) |
| C. | D = (8.6 Δ/B) |
| D. | Δ = (8.6 B/D) |
| Answer» E. | |
| 234. |
Which of the following types of rain gauges is used for measuring rain in remote hilly inaccessible areas ? |
| A. | tipping bucket type |
| B. | weighing type |
| C. | floating type |
| D. | Simon’s raingauge |
| Answer» B. weighing type | |
| 235. |
In gravity canals, F.S.L. is |
| A. | Always at the ground level |
| B. | Always below the ground level |
| C. | Generally 4 to 5 meters above the ground level |
| D. | Only a few cm above the ground level |
| Answer» E. | |
| 236. |
Borrow pits should preferably be located in |
| A. | Field on the left side of the canal |
| B. | Field on the right side of the canal |
| C. | Fields on both sides of the canal |
| D. | Central half width of the section of the canal |
| Answer» E. | |
| 237. |
If d is the depth of the aquifer through which water is flowing, then the relationship between permeability k and transmissible T is given by |
| A. | T = kd |
| B. | T = k/d |
| C. | T= Vkd |
| D. | k= VTd |
| Answer» B. T = k/d | |
| 238. |
The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called |
| A. | hygroscopic water |
| B. | equivalent moisture |
| C. | soil moisture deficiency |
| D. | pellicular water |
| Answer» D. pellicular water | |
| 239. |
Bed bars in a canal are provided |
| A. | To watch the general behavior of canal |
| B. | To measure the discharge |
| C. | To raise the supply level |
| D. | To control the silting |
| Answer» B. To measure the discharge | |
| 240. |
As compared to gravity dams, earthen dams |
| A. | are costlier |
| B. | are less susceptible to failure |
| C. | require sound rock foundations |
| D. | require less skilled labour |
| Answer» E. | |
| 241. |
A fall in a canal bed is generally provided, if |
| A. | Ground slope exceeds the designed bed slope |
| B. | Designed bed slope exceeds the ground slope |
| C. | Ground slope is practically the same as the designed bed slope |
| D. | None of these |
| Answer» B. Designed bed slope exceeds the ground slope | |
| 242. |
The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than |
| A. | 10 cm |
| B. | 20 cm |
| C. | 30 cm |
| D. | 40 cm |
| Answer» D. 40 cm | |
| 243. |
For an annual flood series arranged in descending order of magnitude, the return for a magnitude listed at position period m in a total data N is |
| A. | N/(m+l) |
| B. | m/(N+l) |
| C. | m/N |
| D. | (N+l)/m |
| Answer» E. | |
| 244. |
In a syphon aqueduct |
| A. | Drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough |
| B. | Drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough |
| C. | Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough |
| D. | Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough |
| Answer» D. Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough | |
| 245. |
The most suitable section of a lined canal, is |
| A. | Triangular section with circular bottom for small canals |
| B. | Trapezoidal section with rounded corners for large canals |
| C. | Both (A) and (B) |
| D. | None of these |
| Answer» D. None of these | |
| 246. |
A deep well |
| A. | is always deeper than a shallow well |
| B. | has more discharge than a shallow well |
| C. | is weaker structurally than a shallow well |
| D. | both (A) and (B) |
| Answer» C. is weaker structurally than a shallow well | |
| 247. |
The uplift pressure on the face of a drainage gallery in a dam is taken as |
| A. | hydrostatic pressure at toe |
| B. | average of hydrostatic pressure at toe and heel |
| C. | two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel |
| D. | none of the above |
| Answer» D. none of the above | |
| 248. |
A counter berm is |
| A. | A horizontal benching provided on the inside slope |
| B. | A horizontal benching provided on the outside slope |
| C. | A vertical benching provided on the outer edge of the bank |
| D. | A vertical benching provided on the inner edge of the bank |
| Answer» C. A vertical benching provided on the outer edge of the bank | |
| 249. |
Wetted perimeter of a regime channel for a discharge of 64 cumecs as per Lacey’s theory will be |
| A. | 19m |
| B. | 38m |
| C. | 57m |
| D. | 76m |
| Answer» C. 57m | |
| 250. |
Irrigation water having the concentration of Na++ , Ca++ and Mg++ as 20, 3 and 1 Milli equivalent per litre respectively will be classified as |
| A. | low sodium water |
| B. | medium sodium water |
| C. | high sodium water |
| D. | very high sodium water |
| Answer» C. high sodium water | |