Agriculture MCQs

Page No. 178

The depth of flow at which the energy is maximum is called ____________________?


aSuper critical depth

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bSub-critical depth

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cCritical depth

✓


dAll are correct

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View Answer critical depth

Permissible velocity of water flowing through concrete lined tunnel is usually __________________?


a3- 4m/sec

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b4 – 5m/sec

✓


c5- 6m/sec

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d6- 7m/sec

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View Answer 4 – 5m/sec

A type of flow in which water particles, while moving in the direction of flow, rotate about their mass centre is called _________________?


aTurbulent flow

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bRotational flow

✓


cLaminar flow

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dCircular flow

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View Answer Rotational flow

Mercury does not wet the glass because of its property of ______________________?


aCapillary

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bSurface tension

✓


cCompressibility

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dViscosity

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View Answer Surface tension

From a water fall, if water is falling down at the rate of 100 N/sec: on the blades of a turbine when the height of fall is 100 m the power delivered to turbine will be______________?


a1,000 kw

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b10,000 kw

✓


c100 kw

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d5,000 kw

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View Answer 10,000 kw

velocity of gases is measured with a _____________________?


aHot wire manometer

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bHot wire anemometer

✓


cBarometer

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dAll are correct

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View Answer Hot wire anemometer

The hydraulic gradient line (H.G.L)represents the sum of_________________?


aPressure head + datum head

✓


bPressure head + velocity head

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cvelocity head

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dWater surface

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A pipe flowing full, the liquid particles in the pipe has maximum velocity at __________________?


aTop of pipe

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bCentre of pipe

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cBottom of pipe

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dAll are correct

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View Answer Centre of pipe

An earth embankment built on one or both sides of a river, some distance away from its banks to control flood is called _______________?


aDyke

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bEmbankment

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cMarginal embankment

✓


dFlood protective bund

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View Answer Marginal embankment

A closed conduct or barrel used used for supplying water under high pressure to a turbine to generate electricity is called __________________?


aTunnel

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bPenstock

✓


cChute

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dSyphon

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View Answer Penstock

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