Choosing Between FE Civil and FE Mechanical
The Fundamentals of Engineering (FE) exam is offered in seven discipline-specific versions, and two of the most popular are FE Civil and FE Mechanical. If your engineering background spans both areas or you are deciding which path to pursue, understanding the differences between these exams is essential for making the right choice.
This guide breaks down the content, difficulty, career implications, and exam structure of both the FE Civil and FE Mechanical exams so you can make an informed decision.
Exam Structure Overview
Both exams are computer-based, administered at Pearson VUE testing centers, and consist of 110 questions to be completed in 5 hours and 20 minutes. Both allow use of the NCEES FE Reference Handbook as a searchable PDF during the exam. The key difference lies in the subject matter tested.
FE Civil Exam Content Areas
The FE Civil exam focuses on topics relevant to civil engineering practice. The major content areas include:
- Mathematics and Statistics (7-11%) - Calculus, linear algebra, probability and statistics
- Ethics and Professional Practice (3-5%) - Professional obligations, ethical dilemmas
- Engineering Economics (3-5%) - Time value of money, cost analysis
- Statics (7-11%) - Force systems, equilibrium, trusses
- Dynamics (3-5%) - Kinematics, kinetics, vibrations
- Mechanics of Materials (7-11%) - Stress, strain, deformation
- Fluid Mechanics (5-9%) - Flow analysis, hydraulics, pipe flow
- Hydraulics and Hydrology (5-9%) - Open channel flow, runoff analysis
- Geotechnical Engineering (9-14%) - Soil mechanics, foundations
- Structural Engineering (9-14%) - Beam analysis, column design
- Transportation Engineering (9-14%) - Highway design, traffic analysis
- Environmental Engineering (7-11%) - Water treatment, waste management
- Construction Engineering (3-5%) - Project management, construction methods
- Surveying (3-5%) - Measurement methods, mapping
FE Mechanical Exam Content Areas
The FE Mechanical exam covers topics central to mechanical engineering practice:
- Mathematics and Statistics (6-9%) - Calculus, differential equations, statistics
- Ethics and Professional Practice (3-5%) - Professional responsibilities
- Engineering Economics (3-5%) - Economic analysis, cost comparisons
- Statics (7-11%) - Force analysis, moments, equilibrium
- Dynamics (7-11%) - Particle and rigid body dynamics
- Mechanics of Materials (7-11%) - Stress analysis, material properties
- Fluid Mechanics (7-11%) - Fluid statics, dynamics, pipe flow
- Thermodynamics (7-11%) - Laws of thermodynamics, cycles, properties
- Heat Transfer (7-11%) - Conduction, convection, radiation
- Measurements and Controls (5-8%) - Instrumentation, control systems
- Mechanical Design (7-11%) - Machine element design, failure theories
- Material Properties (5-8%) - Material science, testing methods
Key Differences in Difficulty
Neither exam is objectively harder than the other, but each presents different challenges. The FE Civil exam covers a wider range of subdisciplines, including geotechnical, transportation, structural, and environmental engineering. This breadth means you need at least a basic understanding of many different areas, which can be challenging if your coursework did not cover all of them.
The FE Mechanical exam tends to have more depth in thermodynamics, heat transfer, and dynamics. If you are strong in physics-based problem solving and comfortable with thermal systems, the FE Mechanical exam may feel more manageable. If you prefer broader but shallower coverage of practical engineering applications, the FE Civil exam might be a better fit.
Career Path Considerations
Your choice of FE exam should align with your intended career path. Passing the FE Civil exam is the first step toward becoming a licensed Professional Engineer (PE) in civil engineering, opening doors to roles in structural design, transportation planning, water resources, and construction management.
Passing the FE Mechanical exam leads toward PE licensure in mechanical engineering, with career opportunities in HVAC design, manufacturing, product development, automotive engineering, and energy systems.
Keep in mind that you can take a different PE exam discipline than your FE discipline. However, choosing the FE exam that matches your intended career helps you build foundational knowledge you will use throughout your career.
Making Your Decision
Consider these factors when choosing: your undergraduate major, your strongest coursework areas, your career goals, and which exam content areas overlap most with your existing knowledge. Review the NCEES FE Reference Handbook for both disciplines to see which set of formulas and topics feels more familiar.
If you are still undecided, take a diagnostic practice exam for both disciplines. Your performance on practice questions will reveal which exam plays to your strengths and where you would need to invest the most study time.