Finite Element Analysis (FEA) MCQs

1. What is the primary objective of Finite Element Analysis (FEA)?
(A) To perform experimental testing of materials
(B) To simplify complex problems using numerical methods
(C) To manufacture aerospace components
(D) To replace analytical solutions completely

2. Which of the following is a fundamental step in FEA?
(A) Designing the final product
(B) Applying boundary conditions and loads
(C) Conducting physical tests before simulation
(D) Using only analytical equations

3. In FEA, a complex geometry is divided into smaller elements. This process is called:
(A) Meshing
(B) Integration
(C) Optimization
(D) Extrapolation

4. Which type of elements are commonly used in 3D FEA models?
(A) Line elements
(B) Shell elements
(C) Tetrahedral and hexahedral elements
(D) Beam elements

5. Which governing equation is primarily used in structural FEA?
(A) Navier-Stokes equation
(B) Newton’s second law
(C) Hooke’s law and equilibrium equations
(D) Schrödinger equation

6. What is the purpose of boundary conditions in FEA?
(A) To reduce the number of elements in the mesh
(B) To define constraints and loads on the structure
(C) To increase the computational time
(D) To automatically solve all equations

7. Which of the following software is commonly used for FEA simulations?
(A) AutoCAD
(B) MATLAB
(C) ANSYS
(D) SolidWorks (without simulation module)

8. What type of analysis is performed to determine a structure’s response to time-dependent loading?
(A) Static analysis
(B) Modal analysis
(C) Transient dynamic analysis
(D) Thermal analysis

9. Which of the following affects the accuracy of an FEA simulation?
(A) Element type and mesh refinement
(B) The color of the model
(C) The number of screenshots taken
(D) The brand of the computer used

10. In FEA, stress concentration occurs due to:
(A) Uniformly distributed loads
(B) Smooth surfaces
(C) Sharp corners and sudden changes in geometry
(D) Large element sizes