Q.1
In Finite Element Method (FEM), which option is not correct with respect to discretization or mesh generation?
  • a) Density of elements depends on the degree of accuracy desired
  • b) Choice of element type may depend on the geometry of domain
  • c) For better accuracy correct formulae has to be applied
  • d) Some general rules govern mesh generation
Q.2
In Finite Element Method (FEM), Mesh convergence is a measure of the number of _____ required in a model to ensure that the results of an analysis are not affected by changing the size of the _____
  • a) elements, mesh
  • b) nodes, mesh
  • c) nodes, element
  • d) degrees of freedom, element
Q.3
In Finite Element Method (FEM), While domain discretization, at which of the following geometrical cases a node is not required?
  • a) Change in cross-section area only
  • b) Change in cross-section only
  • c) Change in cross section area as well as change in cross-section
  • d) No change
Q.4
In Finite Element Method (FEM), In order to increase accuracy of a solution, while domain discretization, more than one node is to be placed at a point source.
  • a) True
  • b) False
Q.5
For an inviscid flow of a fluid around a cylinder in an open channel as shown, the flow in the surroundings of the cylinder gets _____ and thus, the flow becomes ___
  • a) accelerated, non-uniform
  • b) decelerated, unsteady
  • c) accelerated, unsteady
  • d) compressed, non-uniform
Q.6
For an inviscid flow of a fluid around the cylinder in an open channel as shown, the flow in the surroundings of the cylinder gets accelerated. At which points, A, B, C and D the mesh is created finer than the other points?
  • a) Both A and B
  • b) Either A or B
  • c) Both C and D
  • d) Only at D
Q.7
In Finite Element Method (FEM), for discretization purpose in general, a refined mesh is employed in areas where changes in geometry, boundary conditions, loading, material properties or solution are present.
  • a) True
  • b) False
Q.8
In Finite Element Method (FEM), for discretization purpose in general, whichelement is an undesired one?
  • a) An equilateral triangle of side 5 units
  • b) A quadrilateral
  • c) A rhombus of side 10 units
  • d) A rectangle of dimensions 100×1
Q.9
In Finite Element Method (FEM), for discretization purpose in general, which optionis not true for mesh refinement?
  • a) Previous meshes should be contained in the refined mesh
  • b) Any point in the body can be included within an arbitrarily small element at any stage of the mesh refinement
  • c) The same order of approximation for the solution may be preserved through all stages of the refinement process
  • d) Elements with very large aspect ratios are desired
Q.10
In Finite Element Method (FEM), for discretization purpose in general, which of the following mesh cannot be a part of mesh refinement process?
  • a) A
  • b) B
  • c) C
  • d) D
Q.11
To discretize a domain using rectangular elements, if the aspect ratio is to be limited towhich dimension (mm) of rectangular element gives finest mesh?
  • a) 1×0.5
  • b) 1.1×0.1
  • c) 0.11×0.01
  • d) 0.1×0.05
Q.12
In Finite Element Method (FEM), choose the incorrect option regarding to the dimensions (mm) of elements in a finite element mesh?
  • a) Elements with very large aspect ratios are avoided
  • b) Elements with small angles are undesired
  • c) The coefficient matrices in finite element equations depend on dimensions of elements
  • d) Rectangular elements with high aspect ratio are preferred
0 h : 0 m : 1 s