water management Mcqs
201. The _________ analysis of earth dam foundation against shear must be carried out when the foundation is kept on fine loose cohesion less material?
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A. Failure

B. Overturning

C. Stability

D. Suitability

202. The hydraulic jump is formed on down stream of toe of glacis for the purpose to dissipate surplus energy of the flowing water, the nature and strength of jump depends upon a Number called______________________?
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A. Darcy,s law

B. Froude No

C. Reynolds

D. Webber

203. If a river or stream is collecting sediment and is building up dunes in its bed is called ______________________?
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A. Sediment river

B. Sub-stable river

C. Stable river

D. Aggrading river
204. When ever a body is immersed wholly or partially in water, it is lifted up by a force equal to the weight of water displaced by the body ?
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A. None of these

B. Newtons law of otion

C. Archimeds Principle

D. Law of gravity

205. The precipitation that falls during the growing season of the crop is called__________________?
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A. Useful rain fall

B. Direct rain fall

C. Monsoon rain fall

D. all are correct

206. The loss of head H/ L is proportional to the length of creep. There fore the loss of head per unit creep length is called ______________________?
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A. Hydraulic gradient

B. Creep length

C. Head loss

D. Exit gradient

207. Darcy formula for loss of head in pipes is given by, hf=4fl v2 / __________________?
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A. gd2

B. g2d

C. gd

D. 2gd
208. The aeration of water is done to remove _________________?
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A. Colour

B. Odour

C. Smell

D. Taste

209. The stability analysis of earth dam founded on cohesion less silt material be made against_____________________?
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A. Sinking

B. Buckling

C. Shear

D. Turning

210. The water vapours are generally present in a atmosphere, some times isolated and sometimes mixed with other gases. in such a situation the pressure exerted by each component of mixture, will be called ______________________?
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A. Saturation pressure

B. Vapour pressure

C. All are correct

D. Partial pressure
211. A graph which shows the volume of a reservoir or tank at any given water level is called ____________________?
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A. Volume curve

B. Capacity curve

C. All are correct

D. Mass curve

212. A plot of graphical representation showing river flow against time is called _____________________?
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A. Hyetograph

B. Hydrograph

C. All are correct

D. Monograph

213. The discharge carrying capacity of an irrigation channel depends upon ____________________?
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A. Silt amount and bed slope

B. Silt grade, charge and slope

C. Sediment size

D. Channel dimensions
214. A module or outlet in which discharge depends upon the difference of head between distributary and the water course is called ___________________?
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A. Rigid module

B. Semi-modular

C. Non-modular

D. Modular

215. The ratio between the actual pressure and saturation vapour present at same temperature is called___________________?
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A. High Humidity

B. Absolute Humidity

C. Relative Humidity

D. Low humidity

216. the phenomenon of evaporation from water surfaces, from soil surfaces around the plants and from plants and transpiration from plants is called ___________________?
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A. Evapotranspiration

B. Evaporation

C. All are correct

D. Transpiration

217. Water logging and soil salinization is a twin menace which has effected the agriculture sector severely, about _______________ hectares of land are wasted yearly?
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A. 35,000

B. 45,000

C. 30,000

D. 40,000
218. The delta the total depth of water consumed by crop up to its maturity, the delta of cotton is ____________________?
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A. 40 cm

B. 50 cm

C. 80 cm

D. 100 cm

219. Now- a -days the hydraulic structures are designed. Keeping in view the flow net, this was given by __________________?
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A. Lane

B. Blight

C. Darcy

D. Khosla
220. The water level required on the upstream side of a canal head regulator, so as to feed the off-taking canal with its full supply is called_________________?
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A. Pond level

B. FSL

C. HFL

D. Canal level

221. The various works constructed on river side to control the flow and pass it safely from hydraulic structures are called ___________________?
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A. River controlling works

B. Marginal Embankment

C. River Training works

D. Guide Banks

222. The area irrigated in the year and it grows crops on which water rates are leveled is called____________________?
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A. Area cultivated

B. Area leased

C. Area irrigated

D. Area Assessed
223. The experiment of capillary rise is performed in a glass tube of smaller diameter, because___________________?
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A. It is easily visible

B. Glass tube is cheaper than metal

C. Capillary rise is significant

D. Glass tube is lighter than metallic tube

224. The property of saturated soil mass which transmits appreciable quantities . water is called___________________?
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A. Porosity

B. Permeability

C. Discharge

D. Transmissibility

225. Torsional force does not act on ____________________?
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A. Steel

B. Liquids

C. Wood

D. Soil

226. The method of irrigation in which each tree is surrounded by a border to form a pool when water is supplied is called ________________?
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A. Border irrigation

B. Check irrigation

C. Furrow irrigation

D. Basin irrigation
227. When the air in a atmosphere is fully saturated with the vapours present in it, then the pressure exerted by such wet air mass will be called ____________________?
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A. Vapour pressure

B. Saturation pressure

C. Atmospheric pressure

D. Partial pressure

228. Silt free water should be supplied to the canals through______________________?
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A. Under sluices

B. Sluice gates

C. Head sluices

D. Scouring sluices

229. To be more close to the actual field conditions, some times artificial rain tests conducted, the instrument used is called ___________________?
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A. Infiltrometer

B. Rain simulator

C. v Hydrometer

D. I.C. curve

230. A water pool is designed on the down stream of the hydraulic structure to dissipate the energy of falling water by providing a water cushion called ______________________?
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A. Water cushion

B. Cistern

C. Down stream pond

D. Water pool

231. Ground water moving down wards in the un-saturated ground above the water table is called___________________?
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A. Capillary water

B. Hygroscopic water

C. All are correct

D. Gravity water
232. A digging out of earth to make trench for any engineering purpose is called ______________________?
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A. Earth filling

B. Cavitations

C. Excavation

D. borrow pitting

233. The meandering pattern of a river is developed by ____________________?
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A. Dominant discharge

B. Average discharge

C. Maximum discharge

D. Critical discharge

234. The invented filter is provided just after the end of concrete floor to reduce () possibility of _________________?
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A. Piping

B. a and b are correct

C. Up thrust

D. Under mining

235. The property of liquid which controls its rate of flow is called __________________?
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A. Viscosity

B. Compressibility

C. Specific gravity

D. Capillarity

236. On relative basis, when one soil is eroded as compared to other soil under same conditions, this property is called __________________?
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A. All are correct

B. Compact ability

C. Viscosity

D. Erodibility
237. Canals normally excavated directly from river without head regulator is called___________________?
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A. Inundation canals

B. Perennial canals

C. Non-perennial canals

D. Water shed canals

238. The unit of kinetic viscosity is equivalent to ______________________?
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A. All are correct

B. cm/sec

C. cm2/sec

D. cm/sec2

239. The specific weight of water at normal pressure of 760 mm, 4C temperature and at mean sea level is ______________________?
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A. 1100kg/m3

B. 1020kg/m3

C. 960kg/m3

D. 1000ka/m3
240. To avoid scouring from end of structure, it is necessary to provide a ________________ at the exit point?
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A. Stone blocks

B. Stone apron

C. Vertical cutoff

D. Stone boom

241. A river which does not change its alignment slope and its regime significantly is called________________?
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A. Aggrading river

B. Degrading river

C. Deltaic River

D. Stable river
242. An outlet through which the discharge depends upon the water level in the distributary is called ___________________?
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A. Non-flexible

B. Non-modular

C. Rigid module

D. Flexible module
243. Art of mixing saline water with fresh water in accordance with some ratio for irrigation purpose is called _________________?
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A. Amalgamation

B. Mixing of water

C. Desalinization

D. All are correct

244. According to Blight, the percolating water seeps along the lower contour of the hydraulic structure, the length traversed by this water is called ______________________?
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A. Creep length

B. Undermining

C. Seeping length

D. Piping

245. The water particles held in soil pores of root zone by _____________ against gravity and is known as capillary water?
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A. Tension force

B. Gravity force

C. Capillary force

D. Cohesive force

246. Which of the following has highest-coefficient of discharge_____________________?
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A. Cippoletti weir

B. Sharp edged orifice

C. Broad crested weir

D. Venturi meter
247. According to Kennedys silt theory , the critical velocity is directly proportional to depth of flow _____________________?
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A. D0.66

B. D0.67

C. D0.64

D. D0.65

248. The horizontal flow of water in irrigation channel or canal leading to water loss is called as:_________?
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A. Infiltration

B. Seepage

C. Percolation

D. All of these

249. In a river the flood water dries up before it joins the sea or any other river, such river is called ________________?
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A. Tidal

B. Flashy

C. Deltaic

D. Virgin
250. Friction head loss in open channels is determined by_________________?
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A. Pilot tube

B. Chezys formula

C. Darcy weisbach equation

D. Kutters formula