Two water pipes of diameter 2 cm and 4 cm are connected with the main supply line. The velocity of flow of water in the pipe of 2 cm diameter is

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Questions Match

1.
Two water pipes of diameter 2 cm and 4 cm are connected with the main supply line. The velocity of flow of water in the pipe of 2 cm diameter is

1. 4 times that in the other pipe2.  times that in the other pipe3. 2 times that in the other pipe4.  times that in the other pipe

2.
The velocity of kerosene oil in a horizintal pipe is 5 m/s. If g = 10 m/s² then the velocity head (pressure equivalent of kinetic energy) of oil will be

1. 1.25 m2. 4 m3. 3.52 m4. 4.82 m

3.
Water and oil of density 12 gm/cm³ are filled in two cylindrical vessels up to same height. Both vessels have a hole in the wall near the bottom. The velocity of water and oil coming out of the holes are v₁ and v₂ respectively

1. v1 = v22. v1 = 12.6 v23. 4.

4.
The terminal velocity of a sphere of radius r in a viscous fluid is v. What is the terminal velocity of a sphere of radius 2r and of the same density in a given viscous fluid?

1. 4 v2. 3. 2 v4. v2

5.
In a turbulent flow, the velocity of liquid molecule in contact of the walls of the tube is

1. Zero2. Maximum3. Equal to critical velocity4. May have any value

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Two water pipes of diameter 2 cm and 4 cm are connected with the main supply line. The velocity of flow of water in the pipe of 2 cm diameter is