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
• 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
• 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
• 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
• 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
• a) A
• b) B
• c) C
• d) D
Q.11
• 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