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

62

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.
At what speed the velocity head of a stream of water be equal to 40 cm of Hg?

1. 282.8 cm/s2. 432.6 cm/s3. 632.6 cm/s4. 832.6 cm/s

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

...

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