Agriculture MCQs

Page No. 159

The _________ analysis of earth dam foundation against shear must be carried out when the foundation is kept on fine loose cohesion less material?


aStability


bSuitability


cOverturning


dFailure


View Answer Stability

In ogee spillway the discharge is directly proportional to _______________________?


aH1/2


bH1/3


cH3/2


dH1/4


View Answer H3/2

The sheet or small layer of water flowing over an ogee spillway is called _________________?


aNappe


bThin layer


cWater sheet


dwater spillway


View Answer Nappe

A spoil bank is formed when the volume of excavated soil is _________________ of embankment filling?


aLess than


bExcess


cEqual to


dNot required


View Answer Excess

The counter berm for a canal is provided so as to contain the saturation gradient line _____________ the bank?


aOut of


bWithin


cAbove


dBelow


View Answer Within

It is important to keep the saturation gradient line within the body of a embankment of canal, the saturation gradient line in loomy soils lie at___________________?


a1:2 to 1:4


b1:3 to 1:5


c1:4 to 1:6


d1:5 to 1:7


View Answer 1:4 to 1:6

For an economical design of gravity dam, the shear friction factor causec compression strength should lie between____________________?


a1.5 to 4.0


b2.0 to 4.0


c2.5 to 4.5


d3 to 5


View Answer 1.5 to 4.0

Water logging caused by ____________ water, which during excessive irrigation percolates down and join under ground water table?


aCapillary


bHygroscopic


cGravity


dFree


View Answer Gravity

The run-off from catchment areas, Roads, buildings and other fallow lands is called ____________________?


aRain water


bSurface run-off


cStorm water


dDry weather flow


View Answer Storm water

The process to dilute the available salts from root Zone by providing simply canal water is known as __________________?


aReclamation


bLeaching


cRecultivation


dDe-salting


View Answer Leaching

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