water management MCQs – Page 11

Practise focused water management questions with marked answers for exam preparation and subject revision.

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