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241.

The total pressure on the bottom of a closed cylindrical vessel completely filled up with a liquid is the sum of the total centrifugal pressure and the weight of the liquid in the vessel

Correct

Incorrect

242.

The flow of water through the hole in the bottom of a wash basin is an example of

A.	steady flow	B.	uniform flow
C.	free vortex	D.	forced vortex

243.

The tangential velocity of the water element having a free vortex is

A.	directly proportional to its distance from the centre	B.	inversely proportional to its distance from the centre
C.	directly proportional to its (distance)2 from the centre	D.	inversely proportional to its (distance)2 from the centre

244.

In the above question, if the angular velocity ? is doubled, then the depth of parabola will be

A.	halved	B.	two times
C.	four times	D.	eight times

245.

The property of a liquid which controls its rate of flow is called viscosity.

True

False

246.

According to Newton's law of viscosity, the shear stress on a layer of a fluid is

A.	equal to	B.	directly proportional
C.	inversely proportional

247.

A thick liquid like a syrup has a

lesser

greater

248.

The shear stress between the two liquid layers is

directly

indirectly

249.

Newton's law of viscosity is a relationship between

A.	pressure, velocity and temperature	B.	shear stress and rate of shear strain
C.	shear stress and velocity	D.	rate of shear strain and temperature

250.

The unit of dynamic viscosity in S.I. units is

A.	N-m/s2	B.	N-s/m2
C.	poise	D.	stoke