Agriculture MCQs

Page No. 172

A structure made near weirs and barrages to facilitate the migration of fish up stream or down stream is called __________________?


aFish ladder


bFish escape


cFish pool


dFish pond


View Answer Fish ladder

Net irrigation + field irrigation losses are the requirement of _____________________?


aFull irrigation


bField irrigation


cFurrow irrigation


dBasin irrigation


View Answer Field irrigation

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


aFurrow irrigation


bBasin irrigation


cBorder irrigation


dCheck irrigation


View Answer Basin irrigation

Land containing high percentage of alkalies may be reclaimed by addition of_____________________?


aCaso4


bGypsum


cChemicals


dCaCO3


View Answer Caso4

If the duration of a unit hydrograph approaches zero, the resulting unit hydrograph is called __________________?


aInstantaneous unit hydrograph


bIntensity unit hydrograph


cUnit hydrograph


dUnit hyetograph



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


aMonograph


bHyetograph


cHydrograph


dAll are correct


View Answer Hydrograph

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


aEvapotranspiration


btranspiration


cEvaporation


dAll are correct


View Answer Evapotranspiration

The centre of pressure of a plane submerged area which holds it in equilibrium is ____________________?


aAlways below the centre of gravity of the area


bCoincident with centroid of area if its plane is vertical


cAlways above the centroid of the area


dIndependent of the inclination of area



generally useful life of a reservoir is considered terminated when its -gross storage is reduced by _______________ of the design capacity of the reservoir?


a100%


b80%


c50%


d20%


View Answer 80%

Aeration holes are provided to reduce the inside saturation pressure ____________________?


aIn a weir with end contractions


bIn a suppressed weir


cIn a cippoletti weir


dIn all weir


View Answer In a suppressed weir

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