Questions in Mechanical Properties of Fluids

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	A cylindrical vessel of 90 cm height is kept filled upto the brim. It has four holes 1, 2, 3, 4 which are respectively at heights of 20 cm, 30 cm, 45 cm and 50 cm from the horizontal floor PQ. The water falling at the maximum horizontal distance from the vessel comes from
	A rectangular vessel when full of water takes 10 minutes to be emptied through an orifice in its bottom. How much time will it take to be emptied when half filled with water
	A streamlined body falls through air from a height h on the surface of a liquid. If d and D(D > d) represents the densities of the material of the body and liquid respectively, then the time after which the body will be instantaneously at rest, is
	A large tank is filled with water to a height $H$. A small hole is made at the base of the tank. It takes ${{T}_{1}}$ time to decrease the height of water to $\frac{H}{\eta }\,(\eta >1)$; and it takes ${{T}_{2}}$ time to take out the rest of water. If ${{T}_{1}}={{T}_{2}}$, then the value of $\eta $ is
	Velocity of water in a river is
	As the temperature of water increases, its viscosity
	The coefficient of viscosity for hot air is
	A good lubricant should have
	We have three beakers A, B and C containing glycerine, water and kerosene respectively. They are stirred vigorously and placed on a table. The liquid which comes to rest at the earliest is
	A small drop of water falls from rest through a large height $h$ in air; the final velocity is