GATE 2023 Fluid Mechanics-1 Quiz 7

Which of the following are shear thinning fluids?

1). Starch

2). Sugar

3). Paints

4). Paper pulp

In a pond at a depth of 5m air bubble is formed of diameter 0.8mm. Calculate gauge pressure inside air bubble. Assume surface tension = 0.075N/m.

Calculate the metacentric height of a rectangular floating body of length 15m, and width 8m. The water surface is at 2m above bottom and centre of gravity is 2.5m from bottom.

A vertical plate as shown below in immersed in water. Find the difference between centre of pressure and centre of gravity take free surface as reference

Calculate percentage error in the discharge of V- notch if the percentage error in the measurement of angle of v-notch is 3.5% sin(85°) = 0.99

The velocity components in the x and y directions are given by, u = λxy³ – x²y, V = xy - . The value of λ for a possible flow field involving an incompressible fluid is

The velocity components for the two-dimensional flow is given below:

u = -4ax(x² – 3y²) and v = 4ay(3x² – y²)

Which of the following statements are valid for the given flow?

If the steam function in the flow is ψ = 3x² + 5xy³, choose the correct option (more than one answer may be correct).