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.
| 301. |
*/*_For a unique design of a channel by Kennedy's theory? |
| A. | Its breadth must only be known |
| B. | Its depth must only be known |
| C. | Its breadth and depth ratio must only be known |
| D. | All the above |
| Answer» D. All the above | |
| 302. |
*/*_The intensity of irrigation means? |
| A. | Percentage of culturable commanded area to be irrigated annually |
| B. | Percentage of gross commanded area to be irrigated annually |
| C. | Percentage of the mean of culturable commanded area and the gross commanded area to be irrigated annually |
| D. | Total depth of water supplied by the number of waterings |
| Answer» B. Percentage of gross commanded area to be irrigated annually | |
| 303. |
*/*_The length and width of a meander and also the width of the river, vary roughly as? |
| A. | Square root of the discharge |
| B. | Discharge |
| C. | Square of the discharge |
| D. | Cube of the discharge |
| Answer» B. Discharge | |
| 304. |
*/*_A land is said to be water-logged if its soil pores within? |
| A. | A depth of 40 cm are saturated |
| B. | A depth of 50 cm are saturated |
| C. | Root zone of the crops are saturated |
| D. | All the above |
| Answer» D. All the above | |
| 305. |
*/*_F.S.L. of a canal at its head with respect to parent channel is kept? |
| A. | At the same level |
| B. | 15 cm lower |
| C. | 15 cm higher |
| D. | None of these |
| Answer» C. 15 cm higher | |
| 306. |
*/*_To hold hydraulic jumps, baffle walls are provided in? |
| A. | Sarda type falls |
| B. | English type falls |
| C. | Montague type falls |
| D. | Vertical type falls |
| Answer» C. Montague type falls | |
| 307. |
*/*_Coefficient of discharge of an ogee spillway? |
| A. | depends on depth of approach and upstream slope |
| B. | depends on downstream apron interference and downstream submergence |
| C. | remains constant |
| D. | both (A) and (B) |
| Answer» E. | |
| 308. |
*/*_If L is total length of a canal in kilometers, P is total perimeter of its lining in metres and C is the cost of lining per square metre, the additional expenditure involved on lining, is? |
| A. | 100 PLC |
| B. | PLC/1000 |
| C. | PL/1000C |
| D. | PC/100L |
| Answer» B. PLC/1000 | |
| 309. |
*/*_Assertion A : To estimate the rainfall over a catchment, the number of raingauges required per unit area is large for hilly areas.Reason R : Rainfall gradient is steep. Select your correct answer according to the coding system given below :? |
| A. | Both A and R are true and R is the correct explanation of A |
| B. | Both A and R are 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 are true but R is not the correct explanation of A | |
| 310. |
*/*_A hydraulic jump is generally formed when a stream moving with? |
| A. | A hyper-critical velocity meets a stream moving with a critical velocity |
| B. | A hyper-critical velocity meets a stream moving with a hyper-critical velocity |
| C. | A hyper-critical velocity meets a stream moving with a sub-critical velocity |
| D. | A sub-critical velocity meets a stream moving with a hyper-critical velocity |
| Answer» D. A sub-critical velocity meets a stream moving with a hyper-critical velocity | |
| 311. |
*/*_The peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall excess is 80 mm and base flow which is constant is 40 m3/sec, then the peak of 4-hours unit hydrograph will be? |
| A. | 20 m3/sec |
| B. | 25 m3/sec |
| C. | 30 m3/sec |
| D. | 35 m3/sec |
| Answer» C. 30 m3/sec | |
| 312. |
*/*_A river training work is generally required when the river is? |
| A. | aggrading type |
| B. | degrading type |
| C. | meandering type |
| D. | both (A) and (B) |
| Answer» D. both (A) and (B) | |
| 313. |
*/*_For cereal crops the most commonly adopted method of irrigation, is? |
| A. | Free flowing method |
| B. | Check method |
| C. | Furrow method |
| D. | Sprinkling method |
| Answer» C. Furrow method | |
| 314. |
*/*_Garnett's diagrams are used for graphical solution of design equations of a canal by? |
| A. | Lacey's theory |
| B. | Kennedy's theory |
| C. | Gibb's theory |
| D. | Lindlay theory |
| Answer» C. Gibb's theory | |
| 315. |
*/*_Select the correct statement.? |
| A. | A meander increases the river length but a cut off reduces the river length |
| B. | A cut-off increases the river length but a meander reduces the river length |
| C. | Both meander and cut-off increase the river length |
| D. | Both meander and cut-off decrease the river length |
| Answer» B. A cut-off increases the river length but a meander reduces the river length | |
| 316. |
*/*_The flow-mass curve is graphical representation of? |
| A. | Cumulative discharge and time |
| B. | Discharge and percentage probability of flow being equaled or exceeded |
| C. | Cumulative discharge, volume and time in chronological order |
| D. | Discharge and time in chronological order |
| Answer» D. Discharge and time in chronological order | |
| 317. |
*/*_The shape of recession limb of a hydrograph depends upon? |
| A. | Basin characteristics only |
| B. | Storm characteristics only |
| C. | Both (A) and (B) |
| D. | None of the above |
| Answer» B. Storm characteristics only | |
| 318. |
*/*_The meander pattern of a river is developed by? |
| A. | Average discharge |
| B. | Dominant discharge |
| C. | Maximum discharge |
| D. | Critical discharge |
| Answer» C. Maximum discharge | |
| 319. |
*/*_In a canal syphon, the flow is? |
| A. | Under atmospheric pressure |
| B. | Pipe flow |
| C. | With critical velocity |
| D. | Under negative pressure |
| Answer» C. With critical velocity | |
| 320. |
*/*_The useful storage is the volume of water stored in the reservoir between? |
| A. | minimum pool level and maximum pool level |
| B. | minimum pool level and normal pool level |
| C. | normal pool level and maximum pool level |
| D. | river bed and minimum pool level |
| Answer» C. normal pool level and maximum pool level | |
| 321. |
*/*_Effective precipitation for a crop may be defined as? |
| A. | Total precipitation minus the loss due to evaporation |
| B. | Total precipitation minus the loss due to infiltration |
| C. | Total precipitation during the crop period |
| D. | Available water stored in soil within root zone of the crop |
| Answer» E. | |
| 322. |
*/*_If the height of the hydraulic gradient line above the floor of thickness t is h and the specific gravity of the material of the floor is G, the minimum thickness t of the floor downstream of the crest-wall, is given by the equation? |
| A. | t = (h + 1)/(G + t) |
| B. | t = (h - 1)/(G + t) |
| C. | t = (h - 1)/(G - t) |
| D. | t = (h + 1)/G |
| Answer» D. t = (h + 1)/G | |
| 323. |
*/*_Process of meandering is due to? |
| A. | Sediment load of streams |
| B. | Discharge and hydraulic properties of streams |
| C. | Relative erodibility of the bed and banks |
| D. | All the above |
| Answer» E. | |
| 324. |
*/*_S-hydrograph is used to obtain unit hydrograph of? |
| A. | shorter duration from longer duration |
| B. | longer duration from shorter duration |
| C. | both (A) and (B) |
| D. | none of the above |
| Answer» D. none of the above | |
| 325. |
*/*_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 | |
| 326. |
*/*_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 | |
| 327. |
*/*_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. | |
| 328. |
*/*_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 | |
| 329. |
*/*_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 | |
| 330. |
*/*_Canals taken off from ice-fed perennial rivers, are known? |
| A. | Permanent canals |
| B. | Ridge canals |
| C. | Perennial canals |
| D. | Inundation canals |
| Answer» D. Inundation canals | |
| 331. |
*/*_If the straight sides of a triangular section of a lined canal with circular bottom of radius D, make an angle ? with horizontal, the hydraulic mean depth is? |
| A. | D |
| B. | D/2 |
| C. | D/3 |
| D. | D/5 |
| Answer» C. D/3 | |
| 332. |
*/*_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. | |
| 333. |
*/*_If d1 is the depth of cutting, d2 is the height of the bank from bed level r2 : 1 and r1 : 1 are the slopes in filling and cutting respectively, the horizontal distance n between the bed and bank, is? |
| A. | x = r1 d1 |
| B. | x = r2 d2 |
| C. | x = d1 / r1 |
| D. | x = d2 / r2 |
| Answer» C. x = d1 / r1 | |
| 334. |
*/*_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. | |
| 335. |
*/*_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 | |
| 336. |
*/*_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 | |
| 337. |
*/*_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 | |
| 338. |
*/*_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 | |
| 339. |
*/*_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. | |
| 340. |
*/*_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. | |
| 341. |
*/*_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 | |
| 342. |
%_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 | |
| 343. |
_ The depth of rice root zone, is$? |
| A. | 50 cm |
| B. | 60 cm |
| C. | 80 cm |
| D. | 90 cm |
| Answer» E. | |
| 344. |
_ For a proportional outlet, the flexibility is$? |
| A. | zero |
| B. | between zero and 1 |
| C. | 1 |
| D. | greater than 1 |
| Answer» D. greater than 1 | |
| 345. |
_ Retrogression of the bed level of a river downstream a weir, occurs due to$? |
| A. | Heavy impact of water |
| B. | Increase of the bed level |
| C. | Less percentage of silt |
| D. | Soft soil strata |
| Answer» D. Soft soil strata | |
| 346. |
_ If the critical shear stress of a channel is XC, then the average value of shear stress required to move the grain on the bank is$? |
| A. | 0.5 XC |
| B. | 0.75 TC |
| C. | XC |
| D. | 1.33 TC |
| Answer» C. XC | |
| 347. |
_ The most suitable material for the central impervious core of a zoned embankment type dam is$? |
| A. | clay |
| B. | coarse sand |
| C. | silty clay |
| D. | clay mixed with fine sand |
| Answer» E. | |
| 348. |
_ The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called$? |
| A. | Syphon |
| B. | Super passage |
| C. | Super-aqueduct |
| D. | Syphon aqueduct |
| Answer» E. | |
| 349. |
_ The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are$? |
| A. | At right angle and parallel to weir crest |
| B. | Parallel and at right angle to weir crest |
| C. | Parallel to weir crest in both |
| D. | At right angle to weir crest in both |
| Answer» B. Parallel and at right angle to weir crest | |
| 350. |
_ The main cause of meandering is$? |
| A. | presence of an excessive bed slope in the river |
| B. | degradation |
| C. | the extra turbulence generated by the excess of river sediment during floods |
| D. | none of the above |
| Answer» D. none of the above | |