List of practice Questions

If a face-centered cubic (FCC) crystal has a lattice parameter of 0.5 nm, calculate the atomic radius.
Calculate the Burgers vector magnitude for a body-centered cubic (BCC) crystal with a lattice constant of 0.3 nm, assuming the dislocation is along the shortest lattice vector.
During cold working, a metal experiences a 10\% reduction in cross-sectional area. If the original cross-sectional area was 1 cm\(^2\), what is the new cross-sectional area?
A material undergoes recrystallization at 250\(^\circ\)C. If the material is heated to 300\(^\circ\)C, what process is most likely occurring?
An aluminum alloy sample has a yield stress of 250 MPa and a modulus of elasticity of 70 GPa. What is the strain at yield point?
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?
Which method is used to improve the efficiency of heat transfer in regenerators?
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?
In heat transfer, the Log Mean Temperature Difference (LMTD) is used in the design of
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?
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?
Which type of heat transfer is primarily utilized in furnaces for metallurgical processes?
Why the inertia torque acts in the opposite direction to the accelerating couple?