Fluid-mechanics Questions Set 2:
Which of the following causes the movement of ships and boats in water?
Solution:
From the Bernoulli's equation, which of the following terms represents the pressure energy?
p/w + v^2/2g + z = Constant
Solution:
Which type of turbine changes the pressure of the water passing through it?
Solution:
The pressure force acting in the y direction can be given as which of the following?
Solution:
The isentropic enthalpy drop in the moving blades of a turbine is one-third of the isentropic enthalpy drop in the fixed blades. What is the degree of reaction?
Solution:
If the velocity gradient is given by θ and dynamic viscosity of the fluid is given by μ, what is the shear stress on the wall of the boundary layer in the direction of motion?
Solution:
Water is flowing through a pipe at a velocity of 5 m/s. The pressure of the water in the pipe is 300 kPa. Calculate the pressure head. (Density of water = 1000 kg/m³, g = 9.8 m/s²)
Solution:
On a certain planet, a correctly calibrated spring balance shows the weight of a body as 12 N. The mass of the body is 4.893 kg. Find the value of the acceleration due to gravity on this planet.
Solution:
Which of the following properties is true for an ideal fluid?
Solution:
A solid sphere of radius, r, and made of material with density, ρs, is moving through the atmosphere (constant pressure, p) with a velocity, v. The net force ONLY due to atmospheric pressure (Fp) acting on the sphere at any time, t, is
Solution:
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