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This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Finite Element Method knowledge and support exam preparation. Choose a topic below to get started.
1. |
Considering the problem of (linear) bending of beams according to the Euler-Bernoulli beam theory, if the beam is in equilibrium, then solving the equations governing the equilibrium of the Euler-Bernoulli beam is equivalent to minimizing the total potential energy. |
A. | True |
B. | False |
Answer» B. False | |
2. |
Which statement is not true regarding the variables present in the viscous ow problems? |
A. | Velocity components are zero on xed walls |
B. | Shear stress is zero along the line of symmetry |
C. | Vertical velocity component v<sub>y</sub> and horizontal stress t<sub>x</sub> must be zero along the horizontal line of symmetry |
D. | Shear stress is non zero along the line of symmetry |
Answer» E. | |
3. |
In the formulation of the finite element model for fluids flows, which option is not correct about the penalty formulation? |
A. | The continuity equation is an additional relation among the velocity components |
B. | The constraint is satisfied in an approximate sense |
C. | Uses the penalty function method |
D. | Involves natural and direct formulation of momentum and continuity equations |
Answer» E. | |
4. |
If a finite element model involves the natural and direct formulation of momentum and continuity equations, then it is known as the velocity-pressure formulation or mixed formulation. |
A. | True |
B. | False |
Answer» B. False | |
5. |
The following equation represents the momentum equation for a fluid flow that is approximated by a two-dimensional model. What does k stand for?
|
A. | Thermal conductivity |
B. | Fluid viscosity |
C. | Density |
D. | Pressure |
Answer» C. Density | |
6. |
For fluid flows obeying conservation of mass, what is the value of k if v=4x+ky denotes the velocity at any point in the flow? |
A. | -4 |
B. | 4 |
C. | -2 |
D. | 2 |
Answer» B. 4 | |
7. |
In mathematical modeling, for which option, a fluid flow can be approximated by a two-dimensional model? |
A. | One of the dimensions is very small, and there is some flow along with it |
B. | One of the dimensions is very long, and there is no flow along with it |
C. | One of the dimensions is very long, and there is some flow along with it |
D. | The velocity components in two directions vary along the third direction |
Answer» C. One of the dimensions is very long, and there is some flow along with it | |
8. |
For fluid flows, which expression does not characterize the slow flow of a viscous and incompressible fluid in a closed domain? |
A. | v. v=0 |
B. | 0 |
C. | =0 |
D. | =0 |
Answer» E. | |