List of top Nano Technology Questions

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?
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?.
The key factor in classifying furnaces used in metallurgical industries is
Which equation would best describe the conservation of momentum for fluid flow in pipes?
In which scenario is Bernoulli's equation modified to include a term for head loss?
The critical Reynolds number for the transition from laminar to turbulent flow in a pipe is approximately
A fluid flows through a pipe with a velocity that varies with time at a given point. What type of flow is this?
If a fluid has a Reynolds number of 5000 in a pipe. The type of flow is
A fluid traveling through a horizontal pipe with a decreasing cross-sectional area experiences what kind of pressure change, assuming inviscid flow?
Which type of heat transfer is primarily utilized in furnaces for metallurgical processes?
What does the conservation of mass principle state for a fluid in motion?
Euler's equation is used to describe the motion of fluids under the influence of what forces?
Bernoulli's equation is applicable under which of the following conditions?
What is the primary feature of Couette flow?
The Buckingham \(\pi\) theorem is used for which purpose in fluid mechanics?
A beam is supported at two points with a uniform load across its length. The type of bending moment diagram this beam will have is
A circular shaft subjected to torsion experiences a shear stress \(\tau\). If the radius of the shaft doubles, the shear stress will
In a 2D stress system on an element, if the normal stresses on the x and y axes are \(\sigma_x\) and \(\sigma_y\), and the shear stress is \(\tau\) (\(\tau_{xy}\)), the normal stress on a plane inclined at 45\(^\circ\) to these axes is:
Why the inertia torque acts in the opposite direction to the accelerating couple?
A particle moves with constant acceleration of 2 m/s\(^2\) starting from rest. Its velocity after 3 seconds is
What characterizes a turbulent flow compared to a laminar flow?
Which type of flow has no rotation of fluid elements about their center of mass?
Principal stresses occur where the shear stress is