3951. The season that starts from 1st October and ends on 31st March, runs for 182 days is called __________________?
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A. Rabi season

B. Monsoon season

C. Kharif season

D. Wheat season

3952. The height from the top of the embankment to the normal water level in canal .Dam Reservoir etc, which allows for small waves to splash without over flow is called___________________?
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A. Free board

B. Free space

C. Free end

D. Free faced

3953. Cultivation made on small plane steps because of more steepness of the area is called __________________?
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A. Cascade farming

B. Terrace farming

C. All are correct

D. Step farming

3954. Sliding failure occurs in a solid gravity dam when____________________?
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A. Shear friction factor Is less than 1.5

B. Resultant of all forces cuts the base at the inner middle third point

C. Ratio of over turning moments exceeds than unity

D. Resultant of all forces cuts the base of the dam out side the toe

3955. An escape constructed with masonry or pitched with stones to dispose off surplus of tank or reservoir is called________________?
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A. Bye-wash

B. Disposal channel

C. Water escape

D. paved-escape
3956. Cavitation is caused by _____________________?
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A. High velocity

B. Low pressure

C. High pressure

D. Low discharge

3957. Rabi crops pertains to ___________________?
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A. Monsoon season

B. Throughout the year

C. Summer season

D. Winter season
3958. Mercury does not wet the glass because of its property of ______________________?
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A. Capillary

B. Viscosity

C. Compressibility

D. Surface tension
3959. A watershed canal __________________?
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A. Is most suitable in hilly areas

B. Avoids the cross drainage works

C. Is generally aligned parallel to the contour of the area

D. Irrigates only on one side

3960. A fluid is a substance that ____________________?
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A. Is partially incompressible

B. Can not remain at rest under the action of any shear force

C. Can not be subjected to shear force

D. Always expands until it fills any container

3961. The piezometric level of water in the well at zero discharges is called___________________?
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A. Static water level

B. Full supply level

C. Water table

D. All are correct

3962. velocity of gases is measured with a _____________________?
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A. Barometer

B. Hot wire manometer

C. Hot wire anemometer

D. All are correct

3963. if the depth of water in an open channel is greater than the critical depth, the flow is called________________?
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A. Non-critical flow

B. Critical depth

C. Shooting flow

D. Sub-critical flow
3964. The velocity in a large canal or channel measured at a depth of ___________________ gives the mean velocity using the current meter?
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A. 0.6m

B. 0.5 depth

C. 0.5m

D. 0.6 depth
3965. The delta the total water requirement of crop from the time of sowing to harvesting the delta of sugarcane is __________________?
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A. 100cm

B. 70cm

C. 80cm

D. 120cm
3966. Development of___________in river is due to meandering ?
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A. Turbulence

B. Critical velocity

C. Cutoff

D. Delta

3967. A flow in which velocity of water particles is same at all sections is called ____________________?
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A. Steady flow

B. Compressible flow

C. Uniform flow

D. Laminar flow

3968. An area is officially declared as drought effected if the mean Annual rain fall is less than of the annual Potential evaporation,______________?
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A. 70%

B. 85%

C. 75%

D. 80%

3969. Out/ of a well water is more than canal water because____________________?
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A. Well water is used economically

B. Conveyance losses in well irrigation are less

C. Lifting of water increase cost of well water

D. Well water is clear than canal water

3970. In case of silt deposition in the dam reservoir to dispose of the effectively ________________ be used?
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A. All are correct

B. Vortex pipes

C. Silt excluders

D. Silt ejectors

3971. The law that states that the discharge of sub-soil water is directly proportional to the loss of head and the area of soil sample and inversely proportional to to the length of soil sample ___________________?
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A. Darcys law

B. Thiems law

C. Archimeds principle

D. Permeability law

3972. Weep holes are provided in canal lining to _____________________?
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A. Have drainage facility

B. Give additional anchorage against sliding

C. improve strength of lining

D. Provide water into branch canals

3973. The ratio of specific weight of any liquid to the specific weight of water is called as _________________?
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A. Density of water

B. Density of liquid

C. Specific gravity of water

D. Specific gravity of liquid
3974. Water storage efficiency in the root zone depends upon__________________?
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A. Fine particles of soil

B. Climatic conditions

C. Coarse particles of soil

D. Porosity
3975. The discharge over a rectangular notch is determined by _____________________?
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A. 2/3 cd. B (2g) 1/2 H3/2

B. 2/3 cd. b (2 gh) 1/2

C. 2/3 cd. b (2g) 1/2 H 5/2

D. 2/3 cd. B (2g) 1/2 H

3976. The falling drop of rainwater become spherical due to _________________?
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A. Capillary

B. Compressibility

C. Surface Tension

D. None of these

3977. From a water fall, if water is falling down at the rate of 100 N/sec: on the blades of a turbine when the height of fall is 100 m the power delivered to turbine will be______________?
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A. 100 kw

B. 10,000 kw

C. 1000 kw

D. 5000 kw

3978. A channel is said lo be of most economical cross section, for a given cross-sectional area and bed slope when it __________________?
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A. All of these

B. Involves lesser excavation

C. Has minimum wetted perimeter

D. Gives max. Discharge

3979. An instrument used for measuring pressure head, generally made up of a small pipe tapped into the side of conduit is called ___________________?
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A. Piezometer

B. Manometer

C. Pilot tube

D. All are correct

3980. hail is precipitation in the form of balls or lumps of ice of size greater than _______________ formed by alternate freezing & melting?
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A. 15 mm diameter

B. 10 mm diameter

C. 20 mm diameter

D. 5 mm diameter
3981. To dispose of the surplus water from dam, a water way is constructed called________________?
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A. Channel

B. All are correct

C. Spillway

D. Water escape

3982. For a perfect incompressible liquid flowing in a continuous stream, the total energy of a particle remain the same, while the liquid particle move from one point to another this statement is called ___________________?
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A. Pascal s law

B. Bernoulli equation

C. Continuity Equation

D. Archimedes principle

3983. The water in swimming pools can be ____________ by using any one from the following, chlorine-ultraviolet rays and bromine t ?
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A. Cleaned

B. Disinfected

C. Infected

D. Iodized

3984. The structures, which are constructed on the river bed upstream of head regulator. With this clear water enters in canal such structures are called______________________?
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A. Silt ejectors

B. Silt excluders

C. Vortex pipes

D. Silt control structures

3985. The centre of pressure of a plane submerged area which holds it in equilibrium is ____________________?
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A. Always below the centre of gravity of the area

B. Coincident with centroid of area if its plane is vertical

C. Independent of the inclination of area

D. Always above the centroid of the area
3986. The force with which the particles of same body are held together is called_______________?
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A. Surface tension

B. Cohesion

C. All are correct

D. Adhesion

3987. The percentage of the volume of water filled in voids to the total volume of solids of soil grains is called__________________?
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A. Degree of saturation

B. Degree of compaction

C. Volume of saturation

D. Void ratio

3988. The line in a flow net which shows the direction of flow of water through a soil mass beneath dam are called _________________?
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A. Section lines

B. Equipotential lines

C. Streak lines

D. flow lines
3989. When seepage water after passing the ground water aquifer joins the surface stream, such stream will be called_____________________?
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A. Storm stream

B. Effluent stream

C. Influent stream

D. Rain stream

3990. The mass per unit volume of a liquid at standard temperature and pressure is called ____________________?
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A. None of these

B. Mass density

C. Specific weight

D. Specific gravity

3991. Mostly the salt of calcium and Magnesium can not cause ________________?
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A. Poisoning

B. Salinity

C. Alkalinity

D. Turbidity

3992. Aeration holes are provided to reduce the inside saturation pressure ____________________?
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A. In a cippoletti weir

B. In a suppressed weir

C. In all weir

D. In a weir with end contractions

3993. The quantity of water lost by transpiration from the plants or crops and evaporation from fields adjacent to these plants is called ___________________?
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A. Evapo-transpiration

B. Consumptive use

C. a & b are correct

D. Un-confined water

3994. Net irrigation + field irrigation losses are the requirement of _____________________?
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A. Full irrigation

B. Furrow irrigation

C. Field irrigation

D. Basin irrigation

3995. When the weight of weir balances the up lift pressure caused by the head of the water seeping below the weir bed is called ___________________?
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A. Non-gravity weir

B. Gravity weir

C. Broad crested weir

D. Cippollite weir

3996. To keep the Hydraulic structure safe against undermining the ________________ should be safe?
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A. Creep length

B. Hydraulic gradient

C. Exit gradient

D. Critical exit gradient

3997. An impermeable Formation which neither contains water nor transmits water may be called_____________________?
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A. Confined-aquifer

B. Aquifuge

C. Aquiclude

D. Aquifer

3998. That point in a body at which it will balance if loaded or supported is called ____________________?
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A. Centre of pressure

B. Centre of mass

C. Mass centre

D. Centre of gravity
3999. The floods which exceeds the designed magnitude of a reservoir is called _______________________?
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A. Storm flood

B. High floods

C. Standard protects flood

D. Intensive flood

4000. The total dissolved solids in drinking water should not exceed_________________?
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A. 1200 mg/litre

B. 1300 mg/litre

C. 1000 mg/litre

D. 1500 mg/litre