Overview of Other Disciplines (General Engineering)
The Other Disciplines section of the FE exam is designed for engineers whose undergraduate degree does not align with one of the six specific discipline exams (civil, mechanical, electrical, chemical, environmental, or industrial). It covers a broad range of general engineering topics that span multiple disciplines. Even if you are taking a discipline-specific exam, these general topics appear across all versions and are worth studying.
Key Topics
Mathematics
Mathematics is fundamental to every FE exam discipline. Key topics include analytic geometry, calculus (differentiation, integration, series), differential equations (first-order, second-order, Laplace transforms), linear algebra (matrix operations, eigenvalues, systems of equations), numerical methods (Newton's method, numerical integration, interpolation), and probability and statistics (distributions, hypothesis testing, regression). Practice solving problems efficiently since math appears throughout the exam in every topic area.
Engineering Ethics and Professional Practice
Ethics questions test your understanding of the NCEES Model Rules of Professional Conduct, the engineering licensure process, and ethical decision-making frameworks. Key topics include the obligation to protect public health, safety, and welfare; conflicts of interest; competence and scope of practice; confidentiality; and whistleblowing. Understand the difference between licensure as a Professional Engineer (PE), Engineer Intern (EI), and the role of state boards. Ethics questions often present scenarios where you must identify the most ethical course of action.
Statics
Statics covers force systems (resultants, components, equilibrium), free-body diagrams, trusses (method of joints, method of sections), frames and machines, centroids and centers of gravity, moments of inertia (area and mass), and friction (dry friction, belt friction, wedges). You must be able to draw accurate free-body diagrams and apply equilibrium equations (sum of forces and sum of moments equal to zero) to solve for unknown forces and reactions.
Dynamics
Dynamics covers kinematics of particles and rigid bodies (rectilinear, curvilinear, and relative motion), kinetics (Newton's second law, work-energy, impulse-momentum), vibrations (free and forced, natural frequency, damping), and rotating reference frames. Understand projectile motion, circular motion, and how to apply the work-energy theorem and impulse-momentum theorem to solve problems involving moving objects.
Materials Science
Materials science topics include material properties (stress, strain, elastic modulus, yield strength, ultimate strength, hardness, toughness, ductility), stress-strain diagrams, phase diagrams (iron-carbon, binary eutectic), crystal structures, material selection, corrosion, fatigue, creep, and fracture mechanics. Understand the mechanical behavior of metals, polymers, ceramics, and composites, and how processing affects material properties.
Engineering Economics
Engineering economics covers the time value of money, present worth analysis, annual cost analysis, rate of return, benefit-cost ratio, depreciation (straight-line, MACRS, declining balance), breakeven analysis, and inflation effects. Know how to use the interest factor tables in the FE Reference Handbook and how to compare project alternatives using different economic analysis methods.
Study Strategy
For the Other Disciplines exam, breadth matters more than depth. Cover all topics at a fundamental level rather than diving deep into any one area. Mathematics and statics/dynamics appear on every version of the FE exam, so start there. Practice using the FE Reference Handbook during every study session. Use FE Exam Prep flashcards for formulas across all topic areas and mini exams for broad, timed practice.