Agriculture MCQs

Page No. 176

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


a4fLv2/gd

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b4fLv2/2gd

✓


c4fLv/gd

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d4fLv/2gd

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View Answer 4fLv2/2gd

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


a(2 gh)1/2

✓


b2(gh)1/2

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c2g (h)1/2

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d2gh

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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

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bun-steady flow

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cSteady flow

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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

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bSteady flow

✓


cTurbulent flow

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dNone of these

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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

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bLaw of gravity

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cNewton’s law of motion

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dNone of these

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


aWH

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bWH/2

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cWH2 2

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dWH2

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View Answer WH2 2

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


aCapillarity

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bCompressibility

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cViscosity

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dSpecific gravity

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View Answer Viscosity

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


aCohesion

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bAdhesion

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cSurface Tension

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dViscosity

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View Answer Surface Tension

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


aIt is easily visible

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bGlass tube is cheaper than metal

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cGlass tube is lighter than metallic tube

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dCapillary rise is significant

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View Answer It is easily visible

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


aSpecific weight

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bSpecific gravity

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cMass density

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dNone of these

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View Answer Mass density

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