Agriculture MCQs

Page No. 176

The loss of head due to friction according to Darcy’s formula is _____________________?


a4fLv2/gd


b4fLv2/2gd


c4fLv/gd


d4fLv/2gd


View Answer 4fLv2/2gd

Theoretical velocity of the jet at Vena Contracta is determined by ________________?


a(2 gh)1/2


b2(gh)1/2


c2g (h)1/2


d2gh


View Answer 2g (h)1/2

A flow in which the stream lines may be represented by a straight line is called____________________?


aNon-uniform flow


bun-steady flow


cSteady flow


done-dimension flow


View Answer one-dimension flow

A flow in which the quantity of liquid flowing per second is constant is called___________________?


aUniform flow


bSteady flow


cTurbulent flow


dNone of these


View Answer Steady flow

When ever a body is immersed wholly or partially in water, it is lifted up by a force equal to the weight of water displaced by the body ?


aArchimed’s Principle


bLaw of gravity


cNewton’s law of motion


dNone of these



The water force per meter length on a vertical wall is equal to_________________?


aWH


bWH/2


cWH2 2


dWH2


View Answer WH2 2

The property of liquid which controls its rate of flow is called __________________?


aCapillarity


bCompressibility


cViscosity


dSpecific gravity


View Answer Viscosity

The mercury in a glass tube assumes convex shape at the top because of_________________________?


aCohesion


bAdhesion


cSurface Tension


dViscosity


View Answer Surface Tension

The experiment of capillary rise is performed in a glass tube of smaller diameter, because___________________?


aIt is easily visible


bGlass tube is cheaper than metal


cGlass tube is lighter than metallic tube


dCapillary rise is significant


View Answer It is easily visible

The mass per unit volume of a liquid at standard temperature and pressure is called ____________________?


aSpecific weight


bSpecific gravity


cMass density


dNone of these


View Answer Mass density

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