Agriculture MCQs

Page No. 165

Mostly the salt of calcium and Magnesium can not cause ________________?


aSalinity

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bAlkalinity

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cPoisoning

✓


dTurbidity

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View Answer Poisoning

An open cut given in a canal bank, suitably protected by stone pitching to the upland drainage water into the canal is called ___________________?


aInlet

✓


bOutlet

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cEntrance

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dMixing

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View Answer Inlet

When FSL of the canal is sufficiently above the bed level of drainage so that canal flows under syphonis action, the structure is called _____________________?


aSuper passage

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bSyphon – Aqueduct

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cCanal-syphon

✓


dAqueduct

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View Answer Canal-syphon

When the high flood level of the drain is sufficiently below the bed of the Canal that the drainage water flows freely under gravity, such structure is called___________________?


aAqueduct

✓


bSyphon-Aqueduct

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cCross-Drainage

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dNon-gravity structure

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View Answer Aqueduct

When the rate of change of discharge of outlet equals the rate of change of discharge of the channel, the out let is called __________________?


aSensitive

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bFlexible

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cProportional

✓


dNon-Flexible

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View Answer Proportional

A module or outlet in which discharge is fixed and limited, irrespective fluctuations in water levels in distributary is called _________________?


aModular

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bNon-modular

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cSemi-modular

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dSemi-rigid

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View Answer Modular

The total length of impervious floor on down stream of the hydraulic structure is determined by Bligh’s Theory__________________?


aLane

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bDarcy

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cKhosla

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dAll are correct

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View Answer Khosla

The inverted filter consists layer of materials of increasing ______________ from bottom to top?


aPiping

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bUnder mining

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cPermeability

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dUp thrust pressure

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View Answer Permeability

The invented filter is provided just after the end of concrete floor to reduce () possibility of _________________?


aPiping

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bUnder mining

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cUp thrust

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dA and B are correct

✓


View Answer A and B are correct

Khosla provided a seepage theory for design of Hydraulic structures called________________?


aTheory of seepage

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bMethod of independent variables

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cMethod of cutoffs

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dCreep theory

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