McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 301. |
Lacey assumed a trapezoidal cross-section of a regime channel |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 302. |
Lining of a canal |
| A. | increases |
| B. | decreases |
| C. | does not effect |
| Answer» B. decreases | |
| 303. |
The berms when fully formed |
| A. | reduce the absorption losses and prevents leaks |
| B. | protect the bank from erosion because of wave action |
| C. | provide a scope for future widening the channel |
| D. | all of the above |
| Answer» D. all of the above | |
| 304. |
The smooth entry, the regulators are aligned at an angle of |
| A. | 60? |
| B. | 80? |
| C. | 110? |
| D. | 130? |
| Answer» C. 110? | |
| 305. |
Irrigation is supplementary to rainfall. |
| A. | Agree |
| B. | Disagree |
| Answer» A. Agree | |
| 306. |
Trough stage of river is most suitable location for diversion head works. |
| A. | Yes |
| B. | No |
| Answer» A. Yes | |
| 307. |
A useful soil moisture for plant growth is |
| A. | capillary water |
| B. | gravitational water |
| C. | hygroscopic water |
| D. | all of these |
| Answer» A. capillary water | |
| 308. |
An outlet in which the discharge depends upon the difference in level between the water levels in distributing channel and the water course, is known as |
| A. | non-modular outlet |
| B. | semi-module outlet |
| C. | modular outlet |
| D. | rigid module |
| Answer» A. non-modular outlet | |
| 309. |
The river training works are adopted on a river |
| A. | to pass high flood discharge safely and quickly through the breach |
| B. | to direct and guide the river flow |
| C. | to reduce bank erosion to a minimum |
| D. | all of the above |
| Answer» D. all of the above | |
| 310. |
The science which deals with the measurement of water is called hydrometry. |
| A. | True |
| B. | False |
| Answer» A. True | |
| 311. |
The gap or margin of height, between full supply level (F.S.L.) and top of the bank is called |
| A. | free board |
| B. | dowel |
| C. | inspection roadway |
| D. | berm |
| Answer» A. free board | |
| 312. |
The optimum depth of kot watering is 19 cm for |
| A. | wheat |
| B. | sugar-cane |
| C. | rice |
| D. | cotton |
| Answer» C. rice | |
| 313. |
The width of meandering belt is the |
| A. | transverse distance between the apex point of one curve and apex point on reverse curve |
| B. | axial distance along the river between tangent point of one curve and tangent point of other curve of same order |
| C. | axial distance along the river between the apex point of one curve and apex point on reverse curve |
| D. | transverse distance along the river between tangent point of one curve and tangent point of other curve of same order |
| Answer» A. transverse distance between the apex point of one curve and apex point on reverse curve | |
| 314. |
The function of a scouring sluice is |
| A. | to control the silt entry into the canal |
| B. | to scour the silt deposited in the river bed above the approach channel |
| C. | to pass the low floods without dropping the shutters of the main weir |
| D. | all of the above |
| Answer» D. all of the above | |
| 315. |
In case of syphon aqueduct, the H.F.L. of the drain is |
| A. | much below the bottom of the canal trough |
| B. | much higher above the canal bed |
| C. | in level with the canal bed |
| D. | none of the above |
| Answer» B. much higher above the canal bed | |
| 316. |
A canal head work in rocky stage of a river is not suitable because |
| A. | more cross drainage works are required |
| B. | a costly head regulator is required |
| C. | more falls are necessary to dissipate the energy |
| D. | all of the above |
| Answer» D. all of the above | |
| 317. |
Non-silting, non-scouring velocity is called |
| A. | mean |
| B. | critical |
| Answer» B. critical | |
| 318. |
Sprinklar irrigation is adopted for |
| A. | level |
| B. | uneven |
| C. | hilly |
| Answer» B. uneven | |
| 319. |
In a Sarda type fall, the trapezoidal crest is used for discharges over 14 m3/s. |
| A. | Correct |
| B. | Incorrect |
| Answer» A. Correct | |
| 320. |
The flexibility of a sub-proportional outlet is less than one |
| A. | Yes |
| B. | No |
| Answer» A. Yes | |
| 321. |
A part of water which will move out of the soil, if proper drainage is provided, is known as gravitational water. |
| A. | True |
| B. | False |
| Answer» A. True | |
| 322. |
In level crossing, the water level of canal is much higher than that of the drainage. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 323. |
The length of groyne depends upon the magnitude of river training required. |
| A. | Right |
| B. | Wrong |
| Answer» A. Right | |
| 324. |
When the quantity of the earth is much in excess of the quantity required for filling, it has to be deposited in the form of spoil banks. The spoil banks are made on |
| A. | the right side |
| B. | the left side |
| C. | both the sides |
| D. | all of these |
| Answer» D. all of these | |
| 325. |
Irrigation |
| A. | increases |
| B. | decreases |
| Answer» A. increases | |
| 326. |
Tortuosity of a meandering river is the ratio of |
| A. | meander length to width of meander |
| B. | meander length to width of river |
| C. | curved length along the river to the direct axial length of the river |
| D. | direct axial length of the river to the curved length along the river |
| Answer» C. curved length along the river to the direct axial length of the river | |
| 327. |
For irrigation purposes, the p-H value of water should be |
| A. | between 3 and 6 |
| B. | between 6 and 8.5 |
| C. | between 8.5 and 11 |
| D. | more than 11 |
| Answer» B. between 6 and 8.5 | |
| 328. |
The precipitation caused by lifting of warm moisture laden air masses due to topographic barriers, is called |
| A. | convective precipitation |
| B. | orographic precipitation |
| C. | cyclonic precipitation |
| D. | none of these |
| Answer» B. orographic precipitation | |
| 329. |
Which of the following is a type of non-modular outlet? |
| A. | Submerged pipe outlet |
| B. | Open-flume outlet |
| C. | Kennedy's gauge outlet |
| D. | all of these |
| Answer» A. Submerged pipe outlet | |
| 330. |
Flood frequency denotes the likelyhood of flood being equalled or exceeded. |
| A. | Yes |
| B. | No |
| Answer» A. Yes | |
| 331. |
A degrading river is a scouring river. |
| A. | Yes |
| B. | No |
| Answer» A. Yes | |
| 332. |
The water content at which plants can no-longer extract sufficient water from the soil for its growth, is called |
| A. | field capacity |
| B. | saturation capacity |
| C. | permanent wilting point |
| D. | available moisture |
| Answer» C. permanent wilting point | |
| 333. |
Lacey gave a relation between |
| A. | velocity and hydraulic mean depth |
| B. | area and velocity |
| C. | both (a) and (b) |
| D. | none of these |
| Answer» C. both (a) and (b) | |
| 334. |
According to Khosla's theory, the critical hydraulic gradient for alluvial soils is approximately equal to |
| A. | 1 |
| B. | 1.5 |
| C. | 2 |
| D. | 2.5 |
| Answer» A. 1 | |
| 335. |
When the bed level of the canal is higher than the highest flood level (H.F.L.) of the drainage, then the cross drainage work is said to be |
| A. | aqueduct |
| B. | super-passage |
| C. | canal syphon |
| D. | syphon aqueduct |
| Answer» A. aqueduct | |
| 336. |
The floor of the aqueduct is subjected to uplift pressure due to |
| A. | seepage of water from the canal to the drainage |
| B. | sub-soil water table in the drainage bed |
| C. | both (a) and (b) |
| D. | none of the above |
| Answer» C. both (a) and (b) | |
| 337. |
When the levels are such that the F.S.L. of the canal is much above the bed level of the drainage trough, so that the canal runs under syphonic action under the trough, the structure provided is known as |
| A. | syphon aqueduct |
| B. | level crossing |
| C. | canal syphon |
| D. | super syphon |
| Answer» C. canal syphon | |
| 338. |
A fall, which maintains the depth is a |
| A. | trapezoidal notch fall |
| B. | rectangular notch fall |
| C. | low weir fall |
| D. | all of these |
| Answer» D. all of these | |
| 339. |
The soil becomes, practically, infertile if its p-H value is |
| A. | 0 |
| B. | 7 |
| C. | 11 |
| D. | 14 |
| Answer» C. 11 | |
| 340. |
For the pipe outlet to be proportional, the outlet is set at |
| A. | 0.3 times |
| B. | 0.5 times |
| C. | 0.8 times |
| Answer» A. 0.3 times | |
| 341. |
In a lined canal, the resistance to flow decreases and velocity of flow increases. |
| A. | Agree |
| B. | Disagree |
| Answer» A. Agree | |
| 342. |
According to Lacey, a channel is said to be in regime, if |
| A. | it flows in incoherent unlimited alluvium of the same character as that transported material |
| B. | its discharge is constant |
| C. | the silt grade and the silt charge are constant |
| D. | all of the above |
| Answer» D. all of the above | |
| 343. |
Which of the following satement is correct? |
| A. | In Lacey's silt theory, the derivation of the various formulae depends upon a single factor 'f'. |
| B. | Lacey's equation includes a concentration of silt as variable. |
| C. | Lacey properly define the silt grade and silt charge. |
| D. | Lacey introduced semi-ellipse as ideal shape of a regime channel. |
| Answer» A. In Lacey's silt theory, the derivation of the various formulae depends upon a single factor 'f'. | |
| 344. |
Okhla weir on Yamuna river, in Delhi, is an example of |
| A. | vertical drop weir |
| B. | drystone slope weir |
| C. | concrete slope weir |
| D. | parabolic weir |
| Answer» B. drystone slope weir | |
| 345. |
Kennedy gave a relation between |
| A. | velocity and hydraulic mean depth |
| B. | area and velocity |
| C. | critical velocity and the depth of flowing water |
| D. | all of the above |
| Answer» C. critical velocity and the depth of flowing water | |
| 346. |
Check flooding method of irrigation is used for |
| A. | closed growing crops |
| B. | tracts with flat gradients |
| C. | crops which can stand inundation of water for sometime |
| D. | crops such as sugarcane, potatoes etc. |
| Answer» C. crops which can stand inundation of water for sometime | |
| 347. |
Lacey assumed that silt is kept in suspension because of the normal components of eddies generated from the |
| A. | bed only |
| B. | side only |
| C. | whole perimeter |
| D. | none of these |
| Answer» C. whole perimeter | |
| 348. |
In Bligh's creep theory |
| A. | there is no distinction between horizontal and vertical creep |
| B. | loss of head does not take place in the same proportion as creep length |
| C. | the uplife pressure distribution is not linear, but follows a sine curve |
| D. | all of the above |
| Answer» D. all of the above | |
| 349. |
Dicken's formula for high flood discharge is useful for catchments in |
| A. | Southern India |
| B. | Northern India |
| C. | Eastern India |
| D. | Western India |
| Answer» B. Northern India | |
| 350. |
Intensity of irrigation should be increased in order to prevent the area from water logging. |
| A. | Yes |
| B. | No |
| Answer» B. No | |
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