4101. 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

4102. 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
4103. 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

4104. 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

4105. 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
4106. 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

4107. 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

4108. 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

4109. 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
4110. 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

4111. 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
4112. 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

4113. 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

4114. 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
4115. 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

4116. 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

4117. Torsional force does not act on ____________________?
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A. Steel

B. Liquids

C. Wood

D. Soil

4118. 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
4119. 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

4120. 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

4121. 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

4122. 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

4123. 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
4124. 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

4125. 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

4126. 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

4127. 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

4128. 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
4129. 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

4130. 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

4131. 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
4132. 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

4133. 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
4134. 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
4135. 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

4136. 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

4137. 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

4138. 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
4139. 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

4140. 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

4141. 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
4142. 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

4143. Wilting point is that limit after that the crop starts feeding up and no water is available for plant, this point occurs after _________________?
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A. 25% water available

B. 30% water available

C. All are correct

D. 20% water available
4144. That rain fall which is effectively consumed by the plants to meet its consumptive needs is called__________________?
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A. Total rainfall

B. Effective rain fall

C. Monsoon rainfall

D. All are correct

4145. The most economical central angle of an arch dam is made at ___________________?
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A. 143

B. 133!

C. 123

D. 153

4146. A flow in which the quantity of liquid flowing per second is constant is called___________________?
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A. Turbulent flow

B. Steady flow

C. None of these

D. Uniform flow

4147. The ratio of the rate of change of discharge through out let to the rate of c./v of water level of the distributary is called_________________?
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A. Flexibility

B. Setting

C. Proportionally

D. Sensitivity
4148. The depth before the jump is always less then the depth after the jump. The depth before the jump is called initial depth and depth after the jump is called_______________?
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A. Sequent depth

B. Final depth

C. Afflux

D. Down stream water depth

4149. Those crops which increase the nitrogen content of the soil and hence the fertility also are called ___________________?
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A. Cash crops

B. Food crops

C. Leguminous crops

D. Fodder

4150. Presently percentage of area irrigation to that of total cultivated area in our country is __________________?
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A. 40%

B. 27%

C. 60%

D. 80%