List of top Nano Technology Questions on Fluid Mechanics

According to equation of continuity,
Water flows from pipe diameter $200\text{ mm}$ to $100\text{ mm}$. If velocity in larger pipe is $2\text{ m/s}$, find velocity in smaller pipe.
Given the variables: velocity (V), density ($\rho$), viscosity ($\mu$), and characteristic length (L), how many dimensionless groups can be formed?
In a horizontal pipe, velocity doubles. Pressure gets
For Inlet diameter $>$ Outlet diameter the Velocity and pressure along the flow will be as
For a laminar boundary layer developing over a flat plate, the displacement thickness is defined as: $\delta^* = \int_0^\delta \left(1 - \frac{u}{\text{U}_\infty}\right) dy$. Physically, $\delta^*$ represents
Drag force $F$ depends on density $\rho$, velocity $V$, and diameter $D$: $F = k \rho^a V^b D^c$. Find exponents $a, b, c$.
The coefficient of viscosity may be determined by using an instrument is called_______
The pressure measured above or below the atmospheric pressure is known as
The kinematic viscosity is the
The value of bulk modulus of a fluid is required to determine
In plane Couette flow, the flow is generated by:
A flat plate is placed in an air stream at 20°C. The free stream velocity is 2 m/s. If the kinematic viscosity of air is \( 1.5 \times 10^{-5} \, {m}^2/{s} \), what is the Reynolds number at a distance of 1 m from the leading edge?
Turbulent flow is generally observed when Reynolds number is:
In laminar boundary layer flow over a flat plate, wall shear stress:
The Navier-Stokes equation is based on:
Displacement thickness in boundary layer theory represents:
Reynolds stresses arise due to:
Laminar flow is characterized by:
In 2D viscous incompressible flow, the continuity equation is:
The velocity profile for a Bingham plastic fluid flowing (under laminar conditions) in a pipe.
For a fluid element in a steady, uniform flow, which of the following statements is true regarding the flow velocity at any point in the flow field?
What parameter in boundary layer theory represents the thickness of the layer in which the velocity increases from zero at the surface to 99\% of the free stream velocity?.
In plane Couette flow, what determines the shear stress between the plates?
In a duct, if the flow enters at 1 kg/s and exits at 0.5 kg/s, what additional information is needed to use the continuity equation effectively?