Agriculture MCQs

Page No. 171

A structure constructed in channel width having narrow throat and raised floor in bottom, used for measuring discharge is called _____________________?


aCippoletti weir

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bVenturimeter

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cVenturiflume

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dregulator

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View Answer Venturiflume

The discharge through rectangular channel is maximum when Hydraulic mean depth m is equal to ______________?


adepth/ 3

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bdepth/ 2

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cdepth/ 4

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d2/3 depth

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View Answer depth/ 2

Bouyant force is equal to the ___________ of liquid displaced by the body in water mass?


aWeight

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bVolume

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cSpecific weight

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dSpecific gravity

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View Answer Volume

The specific weight of water at normal pressure of 760 mm, 4ºC temperature and at mean sea level is ______________________?


a960kg/m3

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b1000kg/m3

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c1100kg/m3

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d1020kg/m3

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View Answer 1000kg/m3

Torsional force does not act on ____________________?


aSteel

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bLiquids

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cSoil

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dWood

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View Answer Liquids

Friction head loss in open channels is determined by_________________?


aChezy’s formula

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bDarcy weisbach equation

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cKutter’s formula

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dPilot tube

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Total energy line (T.E.L) represents the sum of ________________________?


aPressure head + kinetic head and datum head

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bVelocity head + kinetic head + datum head

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cVelocity head + potential head + datum head

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dThe energy head + potential head + datum head

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The unit of kinetic viscosity is equivalent to ______________________?


acm2/sec

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bcm/sec2

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ccm/sec

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dAll are correct

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View Answer cm2/sec

The ratio of change of discharge of an outlet to the rate of change in level of water surface in distributary at its normal depth is called ____________________?


aSensitivity

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bFlexibility

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cDurability

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dFlow ability

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View Answer Sensitivity

The most economical central angle of an arch dam is made at ___________________?


a123

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b133

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c143

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d153

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View Answer 133

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