MCQOPTIONS
Saved Bookmarks
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.
| 351. |
_ An artesian aquifer is the one where$? |
| A. | water surface under the ground is at atmospheric pressure |
| B. | water is under pressure between two impervious strata |
| C. | water table serves as upper surface of zone of saturation |
| D. | none of the above |
| Answer» C. water table serves as upper surface of zone of saturation | |
| 352. |
_ For wave action in dams, the maximum height of freeboard is generally taken to be equal to (where hw is height of wave.)$? |
| A. | 0.5 hw |
| B. | 0.75 hw |
| C. | 1.25 hw |
| D. | 1.50 hw |
| Answer» E. | |
| 353. |
_ The water face of the guide banks, is protected by$? |
| A. | One men stone pitching |
| B. | Two man stone pitching |
| C. | Three man stone pitching |
| D. | Four man stone pitching |
| Answer» B. Two man stone pitching | |
| 354. |
_ The field capacity of a soil depends upon$? |
| A. | Capillary tension in soil |
| B. | Porosity of soil |
| C. | Both (A) and (B) |
| D. | Neither (A) nor (B) |
| Answer» D. Neither (A) nor (B) | |
| 355. |
_ The level of the floor of a syphon aqueduct can be obtained$? |
| A. | By subtracting the depth of the culvert from the canal bed level |
| B. | By subtracting the thickness of culvert plus the depth of the culvert from the canal bed level |
| C. | Both (A) and (B) |
| D. | None of these |
| Answer» C. Both (A) and (B) | |
| 356. |
_ The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after$? |
| A. | 50 years |
| B. | 150 years |
| C. | 200 years |
| D. | 250 years |
| Answer» B. 150 years | |
| 357. |
_ If V‚ÇÄ is the critical velocity of a channel, its silt transporting power, according to Kennedy, is proportional to$? |
| A. | V‚ÇÄ1/2 |
| B. | V‚ÇÄ3/2 |
| C. | V‚ÇÄ5/2 |
| D. | V‚ÇÄ7/2 |
| Answer» D. V‚Äö√á√Ñ7/2 | |
| 358. |
_ Which of the following spillways is least suitable for an earthen dam ?$? |
| A. | ogee spillway |
| B. | chute spillway |
| C. | side channel spillway |
| D. | shaft spillway |
| Answer» B. chute spillway | |
| 359. |
_ An outlet which maintains a constant discharge irrespective of fluctuation in the water levels of the supplying channel or water course, is known as$? |
| A. | Non-modular outlet |
| B. | Semi-modular outlet |
| C. | Flexible modular outlet |
| D. | Right modular outlet |
| Answer» E. | |
| 360. |
_ In case of non-availability of space due to topography, the most suitable spillway is$? |
| A. | straight drop spillway |
| B. | shaft spillway |
| C. | chute spillway |
| D. | ogee spillway |
| Answer» C. chute spillway | |
| 361. |
_ If the intensity of rainfall is more than the infiltration capacity of soil, then the infiltration rate will be$? |
| A. | equal to rate of rainfall |
| B. | equal to infiltration capacity |
| C. | more than rate of rainfall |
| D. | more than infiltration capacity |
| Answer» C. more than rate of rainfall | |
| 362. |
_ Fundamental momentum equation for a hydraulic jump, is$? |
| A. | D₁² - D₂² = (2q/g) × (V₁ - V₂) |
| B. | D₂² - D₁² = (2q/g) × (V - V₂) |
| C. | D₁² - D₂² = (2q/g) × (V₂ - V₁) |
| D. | D₁² + D₂² = (2q/g) × (V₂ - V₁) |
| Answer» C. D‚Äö√á√Ö¬¨‚⧠- D‚Äö√á√ᬨ‚⧠= (2q/g) ‚àö√≥ (V‚Äö√á√á - V‚Äö√á√Ö) | |
| 363. |
_ A river training work is generally required when the river is$? |
| A. | Meandering |
| B. | Aggrading |
| C. | Degrading |
| D. | All the above |
| Answer» B. Aggrading | |
| 364. |
_ According to Khosla’s theory, the exit gradient in the absence of a downstream cutoff is$? |
| A. | 0 |
| B. | unity |
| C. | infinity |
| D. | very large |
| Answer» D. very large | |
| 365. |
_ Pick up the correct statement from the following:$? |
| A. | If the flexibility is more than one, the outlet is hyper-proportional |
| B. | If the setting of an outlet is higher than that required for proportionality, the outlet is hyper-proportional |
| C. | If the flexibility is zero, it is a rigid module |
| D. | All the above |
| Answer» E. | |
| 366. |
_ Which of the following methods of applying water may be used on rolling land ?$? |
| A. | boarder flooding |
| B. | check flooding |
| C. | furrow flooding |
| D. | free flooding |
| Answer» B. check flooding | |
| 367. |
_ The crest level of a canal diversion head work, depends upon$? |
| A. | F.S.L. of the canal |
| B. | Discharge perimeters |
| C. | Pond level |
| D. | All the above |
| Answer» E. | |
| 368. |
_ According to Lacey, in regime conditions$? |
| A. | Silt is kept in suspension by vertical components of eddies |
| B. | Entire cross-section of the channel is generated at all points by the forces normal to the wetted perimeter |
| C. | Both (A) and (B) |
| D. | Neither (A) nor (B) |
| Answer» D. Neither (A) nor (B) | |
| 369. |
_ An aggrading river is a$? |
| A. | silting river |
| B. | scouring river |
| C. | both silting and scouring river |
| D. | neither silting nor scouring river |
| Answer» B. scouring river | |
| 370. |
_ In a Sarda type fall, the rectangular crest, may be used for discharge up to$? |
| A. | 6 cumecs |
| B. | 10 cumecs |
| C. | 14 cumecs |
| D. | 20 cumecs |
| Answer» D. 20 cumecs | |
| 371. |
_ When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. does not touch the underside of the supporting structure, the structure so provided, is called$? |
| A. | Syphon |
| B. | Aqueduct |
| C. | Super passage |
| D. | Syphon-aqueduct |
| Answer» D. Syphon-aqueduct | |
| 372. |
_ The water utilizable by plants is available in soils mainly in the form of$? |
| A. | gravity water |
| B. | capillary water |
| C. | hydroscopic water |
| D. | chemical water |
| Answer» C. hydroscopic water | |
| 373. |
_ Cyclonic precipitation is caused by lifting of an air mass due to$? |
| A. | pressure difference |
| B. | temperature difference |
| C. | natural topographical barriers |
| D. | all of the above |
| Answer» B. temperature difference | |
| 374. |
_ Cross regulators in main canals are provided$? |
| A. | To regulate water supply in the distributaries |
| B. | To increase water head upstream when a main canal is running with low supplies |
| C. | To overflow excessive flow water |
| D. | None of these |
| Answer» C. To overflow excessive flow water | |
| 375. |
_ The best unit duration of storm for a unit hydrograph is$? |
| A. | 1 hour |
| B. | one-fourth of basin lag |
| C. | one-half of basin lag |
| D. | equal to basin lag |
| Answer» C. one-half of basin lag | |
| 376. |
_ For an annual flood series arranged in descending order of magnitude, the return for a magnitude listed at position period m in a total data N is$? |
| A. | N/(m+l) |
| B. | m/(N+l) |
| C. | m/N |
| D. | (N+l)/m |
| Answer» E. | |
| 377. |
_ Bed bars in a canal are provided$? |
| A. | To watch the general behavior of canal |
| B. | To measure the discharge |
| C. | To raise the supply level |
| D. | To control the silting |
| Answer» B. To measure the discharge | |
| 378. |
_ If d is the depth of the aquifer through which water is flowing, then the relationship between permeability k and transmissible T is given by$? |
| A. | T = kd |
| B. | T = k/d |
| C. | T= Vkd |
| D. | k= VTd |
| Answer» B. T = k/d | |
| 379. |
_ 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$? |
| A. | D = Δ (8.64 D/B) |
| B. | B = Δ (8.64 B/D) |
| C. | D = (8.6 Δ/B) |
| D. | Δ = (8.6 B/D) |
| Answer» E. | |
| 380. |
_ A deep well$? |
| 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 | |
| 381. |
_ Lining of irrigation channels$? |
| A. | increases the waterlogging area |
| B. | decreases the waterlogging area |
| C. | does not change the water logging area |
| D. | none of the above |
| Answer» C. does not change the water logging area | |
| 382. |
_ In rigid module, the discharge$? |
| A. | Is independent of water levels in the distributary and water course |
| B. | Depends upon the water level in distributary |
| C. | Depends upon the water level in the water course |
| D. | Depends upon the water levels of both, i.e. distributary and water course |
| Answer» B. Depends upon the water level in distributary | |
| 383. |
_ The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, arei) Water pressureii) Self weightiii) Upliftiv) Pressure due to earthquakeThe correct answer is$? |
| A. | Only (ii) |
| B. | (i), (ii) and (iii) |
| C. | (i), (ii) and (iv) |
| D. | (i), (ii), (iii) and (iv) |
| Answer» B. (i), (ii) and (iii) | |
| 384. |
_ Irrigation water having the concentration of Na++ , Ca++ and Mg++ as 20, 3 and 1 Milli equivalent per litre respectively will be classified as$? |
| A. | low sodium water |
| B. | medium sodium water |
| C. | high sodium water |
| D. | very high sodium water |
| Answer» C. high sodium water | |
| 385. |
_ When a canal and a drainage approach each other at the same level, the structure so provided, is$? |
| A. | An aqueduct |
| B. | A syphon |
| C. | A level crossing |
| D. | Inlet and outlet |
| Answer» D. Inlet and outlet | |
| 386. |
_ Disposal of extra excavated earth of canals, is utilized to provide a spoil bank on$? |
| A. | Left side |
| B. | Right side |
| C. | Both sides |
| D. | All the above |
| Answer» E. | |
| 387. |
_ A hydraulic structure is designed to withstand$? |
| A. | Seepage forces |
| B. | Hydraulic jump |
| C. | Hydraulic pressure |
| D. | All the above |
| Answer» E. | |
| 388. |
_ Which of the following is a flexible outlet ?$? |
| A. | submerged pipe outlet |
| B. | Kennedy’s gauge outlet |
| C. | Gibb’s outlet |
| D. | none of the above |
| Answer» C. Gibb‚Äö√Ñ√¥s outlet | |
| 389. |
_ As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at$? |
| A. | lower level |
| B. | higher level |
| C. | same level |
| D. | any of the above depending on the design |
| Answer» B. higher level | |
| 390. |
_ Optimum depth of kor watering for rice is$? |
| A. | 135 mm |
| B. | 165 mm |
| C. | 190 mm |
| D. | 215 mm |
| Answer» D. 215 mm | |
| 391. |
_ If it rains between 2 P.M. and 3 P.M. and the entire basin area just starts contributing water at 3 P.M. to the outlet, then time of concentration will be$? |
| A. | 15 minutes |
| B. | 20 minutes |
| C. | 30 minutes |
| D. | 60 minutes |
| Answer» E. | |
| 392. |
_ Presence of tail water in a gravity dami) increases the principal stressii) decreases the principal stressiii) increases the shear stressiv) decreases the shear stressThe correct answer is$? |
| A. | (i) and (iii) |
| B. | (i)and(iv) |
| C. | (ii) and (iii) |
| D. | (ii) and (iv) |
| Answer» E. | |
| 393. |
_The stream which does not have any base flow contribution is called$? |
| A. | perennial stream |
| B. | intermittent stream |
| C. | ephemeral stream |
| D. | none of the above |
| Answer» D. none of the above | |
| 394. |
_For a standing crop, the consumptive use of water is equal to the depth of water$? |
| 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. | |
| 395. |
_A fall which maintains its depth, is$? |
| A. | A trapezoidal notch fall |
| B. | A low weir fall |
| C. | A rectangular notch fall |
| D. | All the above |
| Answer» E. | |
| 396. |
_For the upstream face of an earthen dam, the most adverse condition for stability of slope is$? |
| A. | sudden drawdown |
| B. | steady seepage |
| C. | during construction |
| D. | sloughing of slope |
| Answer» B. steady seepage | |
| 397. |
_If the demand line drawn from a ridge in a flow mass curve does not intersect the curve again, it indicates that$? |
| A. | demand cannot be met by inflow |
| B. | reservoir was not full at the beginning |
| C. | both (A) and (B) |
| D. | none of the above |
| Answer» B. reservoir was not full at the beginning | |
| 398. |
_The width of a meander belt is the transverse distance between$? |
| A. | Apex point of one curve and apex point of the reserve curve |
| B. | Apex point and the crossing |
| C. | Two banks of meandering river |
| D. | None of these |
| Answer» B. Apex point and the crossing | |
| 399. |
_The difference in level between the top of a bank and supply level in a canal, is called$? |
| A. | Berm |
| B. | Free board |
| C. | Height of bank |
| D. | None of these |
| Answer» C. Height of bank | |
| 400. |
_The state of the soil when plants fail to extract sufficient water for their requirements, is$? |
| A. | Maximum saturated point |
| B. | Permanent wilting point |
| C. | Ultimate utilization point |
| D. | None of these |
| Answer» E. | |