Fluid-mechanics Questions Set 16:
The density of a liquid is 950 kg/m³. Determine the relative density.
Solution:
In which type of fluid flow does the rate of flow remain constant?
Solution:
Which equation must be satisfied when dealing with fluid flow problems?
Solution:
Calculate the work done in blowing a soap bubble of diameter 15 cm. Assume the surface tension of the soap film to be 0.04 N/m.
Solution:
The angle between the drag force vector and lift force vector when the fluid hits the object at a 12-degree angle of attack is:
Solution:
Pressure drag is generally smaller than the friction drag in which of the following flows?
Solution:
How does the efficiency of a reaction turbine change with an increase in its speed, given a constant head?
Solution:
If water is flowing from a pipe with diameter 0.06 m into a pipe with diameter 0.09 m, and the initial velocity is V1, what is the relationship between V1 and the velocity V2 after the pipe expansion?
Solution:
Here are two types of turbines:
1. Kaplan turbine
2. Francis turbine
What are the typical number of blades in each of these turbines, respectively?
Solution:
A Pitot-static probe is placed in an air stream with velocity 10 m/s and density 1.2 kg/m³. The U-tube manometer attached with the probe has water as the manometric fluid. Assuming the probe factor to be '1', find the reading indicated by the manometer (in mm, rounded to 2 decimal places).
(Assume g = 10 m/s²)
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