Section 21 of 21
Mechanical Engineering
Machine design, manufacturability, GD and T, failure theories, and HVAC
- p433-462page range
- 30pages long
- 7subsections
- 26drill items
What the section holds
Mechanical design and analysis covering springs, bearings, gears and fasteners; manufacturability; geometric dimensioning and tolerancing; static loading failure theories; variable loading failure theories including fatigue; kinematics, dynamics and vibrations covering mechanisms and natural frequency; and an HVAC block.
Why it matters for your exam
This is the discipline section for Mechanical candidates. The failure theory and fatigue material is the part most often needed under time pressure, and the vibrations material here is what the mechanical specification pairs with dynamics.
How to navigate it
Remember that vibrations are here, not in the dynamics section, and that HVAC appears both here and inside thermodynamics as refrigeration and HVAC cycles. Knowing which of the two to open is worth practising.
Search terms that land here
fatigue | endurance limit | gear | GD&T | natural frequency
Subsections, in handbook order
These are the headings the handbook itself uses. The page number beside each is where it begins.
- Mechanical Design and Analysisp433
- Manufacturabilityp441
- Geometric Dimensioning and Tolerancing (GD&T)p444
- Static Loading Failure Theoriesp448
- Variable Loading Failure Theoriesp449
- Kinematics, Dynamics, and Vibrationsp451
- HVACp454
Disciplines that use this section
Page numbers here are read from handbook version 10.5 (seventh printing, April 2025), which runs to 502 pages. NCEES revises the handbook and page numbers move with it, which is why the drill asks which section a topic lives in rather than which page. Check the version of your own copy, downloaded free from NCEES.