Occupations requiring this knowledge
- Millwrights
- Aircraft Mechanics and Service Technicians
- Aviation Inspectors
- Motorcycle Mechanics
- Automotive Service Technicians and Mechanics
- Motorboat Mechanics and Service Technicians
- Farm Equipment Mechanics and Service Technicians
- Mobile Heavy Equipment Mechanics, Except Engines
- Aerospace Engineering and Operations Technologists and Technicians
- Bus and Truck Mechanics and Diesel Engine Specialists
- Heating, Air Conditioning, and Refrigeration Mechanics and Installers
- Geothermal Production Managers
- Wind Turbine Service Technicians
- Hydroelectric Plant Technicians
- Maintenance Workers, Machinery
- Bicycle Repairers
- Avionics Technicians
- Ship Engineers
- Robotics Engineers
- Outdoor Power Equipment and Other Small Engine Mechanics
- Solar Thermal Installers and Technicians
- Drilling and Boring Machine Tool Setters, Operators, and Tenders, Metal and Plastic
- Marine Engineers and Naval Architects
- Biomass Power Plant Managers
- Hydroelectric Production Managers
- Automotive Engineers
- Electrical and Electronics Repairers, Powerhouse, Substation, and Relay
- Electrical and Electronics Repairers, Commercial and Industrial Equipment
- Biofuels Production Managers
- Geothermal Technicians
- Industrial Engineering Technologists and Technicians
- Transportation Vehicle, Equipment and Systems Inspectors, Except Aviation
- Boilermakers
- Solar Photovoltaic Installers
- Automotive Engineering Technicians
- Service Unit Operators, Oil and Gas
- Helpers--Installation, Maintenance, and Repair Workers
- Mechanical Engineering Technologists and Technicians
- Elevator and Escalator Installers and Repairers
- Tool and Die Makers
- Manufacturing Engineers
- Mechanical Engineers
- Control and Valve Installers and Repairers, Except Mechanical Door
- Agricultural Engineers
- Mechanical Drafters
- Rail Car Repairers
- Industrial Engineers
- Sheet Metal Workers
- Electric Motor, Power Tool, and Related Repairers
- Dredge Operators
- First-Line Supervisors of Construction Trades and Extraction Workers
- Roustabouts, Oil and Gas
- Commercial Divers
- Wind Energy Operations Managers
- Robotics Technicians
- Computer Numerically Controlled Tool Operators
- Rotary Drill Operators, Oil and Gas
- Helpers--Carpenters
- Locksmiths and Safe Repairers
- Orthotists and Prosthetists
- Stationary Engineers and Boiler Operators
- Mechatronics Engineers
- Plumbers, Pipefitters, and Steamfitters
- Industrial Machinery Mechanics
- Electronic Equipment Installers and Repairers, Motor Vehicles
- Recreational Vehicle Service Technicians
- Fuel Cell Engineers
- Engineering Teachers, Postsecondary
- Construction Managers
- Power Plant Operators
- Musical Instrument Repairers and Tuners
- Signal and Track Switch Repairers
- Pile Driver Operators
- Medical Equipment Repairers
- Engine and Other Machine Assemblers
- Nuclear Technicians
- Continuous Mining Machine Operators
- Water and Wastewater Treatment Plant and System Operators
- Mechanical Door Repairers
- Fire-Prevention and Protection Engineers
- Electro-Mechanical and Mechatronics Technologists and Technicians
- Logging Equipment Operators
- Watch and Clock Repairers
- Timing Device Assemblers and Adjusters
- Model Makers, Metal and Plastic
- First-Line Supervisors of Mechanics, Installers, and Repairers
- Derrick Operators, Oil and Gas
- Camera and Photographic Equipment Repairers
- Commercial and Industrial Designers
- Nuclear Engineers
- Gas Plant Operators
- Nuclear Power Reactor Operators
- Earth Drillers, Except Oil and Gas
- Electrical and Electronics Installers and Repairers, Transportation Equipment
- Rolling Machine Setters, Operators, and Tenders, Metal and Plastic
- Patternmakers, Metal and Plastic
- Gas Compressor and Gas Pumping Station Operators
- Energy Engineers, Except Wind and Solar
- Insulation Workers, Mechanical
- Chemical Equipment Operators and Tenders
- Aerospace Engineers
- Automotive and Watercraft Service Attendants
- Electrical and Electronic Engineering Technologists and Technicians
- Jewelers and Precious Stone and Metal Workers
- Photonics Technicians
- Manufactured Building and Mobile Home Installers
- Biomass Plant Technicians
- Helpers--Extraction Workers
- Firefighters
- Patternmakers, Wood
- Computer User Support Specialists
- Helpers--Pipelayers, Plumbers, Pipefitters, and Steamfitters
- Materials Engineers
- Home Appliance Repairers
- Environmental Engineers
- Materials Scientists
- Career/Technical Education Teachers, Postsecondary
- Maintenance and Repair Workers, General
- Biofuels Processing Technicians
- Non-Destructive Testing Specialists
- Operating Engineers and Other Construction Equipment Operators
- Water/Wastewater Engineers
- Coil Winders, Tapers, and Finishers
- Crane and Tower Operators
- Wellhead Pumpers
- Microsystems Engineers
- Solar Energy Systems Engineers
- Forging Machine Setters, Operators, and Tenders, Metal and Plastic
- Milling and Planing Machine Setters, Operators, and Tenders, Metal and Plastic
- Rail-Track Laying and Maintenance Equipment Operators
- Riggers
- Tire Repairers and Changers
- Team Assemblers
- Lathe and Turning Machine Tool Setters, Operators, and Tenders, Metal and Plastic
- Multiple Machine Tool Setters, Operators, and Tenders, Metal and Plastic
- Insurance Appraisers, Auto Damage
- Electronics Engineers, Except Computer
- Printing Press Operators
- Petroleum Pump System Operators, Refinery Operators, and Gaugers
- Helpers--Electricians
- Refractory Materials Repairers, Except Brickmasons
- Captains, Mates, and Pilots of Water Vessels
- Environmental Engineering Technologists and Technicians
- Nanotechnology Engineering Technologists and Technicians
- Nanosystems Engineers
- Construction and Building Inspectors
- Solar Energy Installation Managers
- First-Line Supervisors of Firefighting and Prevention Workers
- First-Line Supervisors of Landscaping, Lawn Service, and Groundskeeping Workers
- Carpenters
- Highway Maintenance Workers
- Coin, Vending, and Amusement Machine Servicers and Repairers
- Glass Blowers, Molders, Benders, and Finishers
- Health and Safety Engineers, Except Mining Safety Engineers and Inspectors
- Pump Operators, Except Wellhead Pumpers
- Wind Energy Engineers
- Meat, Poultry, and Fish Cutters and Trimmers
- Tool Grinders, Filers, and Sharpeners
- Model Makers, Wood
- Grinding and Polishing Workers, Hand
- Civil Engineering Technologists and Technicians
- Radio, Cellular, and Tower Equipment Installers and Repairers
- Automotive Body and Related Repairers
- Photonics Engineers
- Precision Agriculture Technicians
- Medical and Clinical Laboratory Technologists
- Chemical Plant and System Operators
- Tire Builders
- Validation Engineers
- Foundry Mold and Coremakers
- Adhesive Bonding Machine Operators and Tenders
- Bioengineers and Biomedical Engineers
- Weatherization Installers and Technicians
- Packaging and Filling Machine Operators and Tenders
- Septic Tank Servicers and Sewer Pipe Cleaners
- Forest Fire Inspectors and Prevention Specialists
- Motorboat Operators
- Hoist and Winch Operators
- Loading and Moving Machine Operators, Underground Mining
- Layout Workers, Metal and Plastic
- Farmers, Ranchers, and Other Agricultural Managers
- Fishing and Hunting Workers
- Explosives Workers, Ordnance Handling Experts, and Blasters
- Recycling and Reclamation Workers
- Cabinetmakers and Bench Carpenters
- Airline Pilots, Copilots, and Flight Engineers
- Facilities Managers
- Electrical Power-Line Installers and Repairers
- Roof Bolters, Mining
- Architectural and Engineering Managers
- Energy Auditors
- Farmworkers, Farm, Ranch, and Aquacultural Animals
- Segmental Pavers
- Metal-Refining Furnace Operators and Tenders
- Chemical Engineers
- First-Line Supervisors of Farming, Fishing, and Forestry Workers
- Machinists
- Audiovisual Equipment Installers and Repairers
- Agricultural Technicians
- Occupational Health and Safety Specialists
- Biofuels/Biodiesel Technology and Product Development Managers
- Computer, Automated Teller, and Office Machine Repairers
- Medical Appliance Technicians
- Commercial Pilots
- First-Line Supervisors of Helpers, Laborers, and Material Movers, Hand
- Hazardous Materials Removal Workers
- Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic
- Railroad Brake, Signal, and Switch Operators and Locomotive Firers
- Occupational Health and Safety Technicians
- Paving, Surfacing, and Tamping Equipment Operators
- Power Distributors and Dispatchers
- Structural Iron and Steel Workers
- Separating, Filtering, Clarifying, Precipitating, and Still Machine Setters, Operators, and Tenders
- Excavating and Loading Machine and Dragline Operators, Surface Mining
- Industrial Production Managers
- Floor Layers, Except Carpet, Wood, and Hard Tiles
- Roofers
- Electrical Engineers
- Aircraft Structure, Surfaces, Rigging, and Systems Assemblers
- Inspectors, Testers, Sorters, Samplers, and Weighers
- Floor Sanders and Finishers
- Helpers--Brickmasons, Blockmasons, Stonemasons, and Tile and Marble Setters
- Brickmasons and Blockmasons
- Telecommunications Equipment Installers and Repairers, Except Line Installers
- Electromechanical Equipment Assemblers
- Glaziers
- Security and Fire Alarm Systems Installers
- Cooling and Freezing Equipment Operators and Tenders
- Woodworking Machine Setters, Operators, and Tenders, Except Sawing
- Wind Energy Development Managers
- Soil and Plant Scientists
- Traffic Technicians
- Tree Trimmers and Pruners
- Computer Numerically Controlled Tool Programmers
- Extruding and Forming Machine Setters, Operators, and Tenders, Synthetic and Glass Fibers
- Furnace, Kiln, Oven, Drier, and Kettle Operators and Tenders
- Sales Engineers
- Automotive Glass Installers and Repairers
- Fallers
- Rail Yard Engineers, Dinkey Operators, and Hostlers
- Biologists
- Pipelayers
- Parts Salespersons
- Construction Laborers
- Telecommunications Line Installers and Repairers
- First-Line Supervisors of Production and Operating Workers
- Cost Estimators
- Ophthalmic Laboratory Technicians
- General and Operations Managers
- Carpet Installers
- Structural Metal Fabricators and Fitters
- Forest and Conservation Technicians
- Electricians
- Government Property Inspectors and Investigators
- Architects, Except Landscape and Naval
- Biochemists and Biophysicists
- Refuse and Recyclable Material Collectors
- Physics Teachers, Postsecondary
- Fence Erectors
- Grinding, Lapping, Polishing, and Buffing Machine Tool Setters, Operators, and Tenders, Metal and Plastic
- Welding, Soldering, and Brazing Machine Setters, Operators, and Tenders
- Geological Technicians, Except Hydrologic Technicians
- Set and Exhibit Designers
- Sawing Machine Setters, Operators, and Tenders, Wood
- Terrazzo Workers and Finishers
- Paperhangers
- Range Managers
- Fire Inspectors and Investigators
- Dentists, General
- Etchers and Engravers
- Transportation Inspectors
- Petroleum Engineers
- Electrical and Electronic Equipment Assemblers
- Crushing, Grinding, and Polishing Machine Setters, Operators, and Tenders
- Drywall and Ceiling Tile Installers
- Sailors and Marine Oilers
- Tank Car, Truck, and Ship Loaders
- Paper Goods Machine Setters, Operators, and Tenders
- Insulation Workers, Floor, Ceiling, and Wall
- Plating Machine Setters, Operators, and Tenders, Metal and Plastic
- Print Binding and Finishing Workers
- Extruding, Forming, Pressing, and Compacting Machine Setters, Operators, and Tenders
- Food Cooking Machine Operators and Tenders
- Railroad Conductors and Yardmasters
- Quality Control Analysts
- Potters, Manufacturing
- Motion Picture Projectionists
- Cutting and Slicing Machine Setters, Operators, and Tenders
- Coating, Painting, and Spraying Machine Setters, Operators, and Tenders
- Telecommunications Engineering Specialists
- Dental Laboratory Technicians
- Welders, Cutters, Solderers, and Brazers
- Machine Feeders and Offbearers
- Stonemasons
- Textile Winding, Twisting, and Drawing Out Machine Setters, Operators, and Tenders
- Heavy and Tractor-Trailer Truck Drivers
- Transportation Engineers
- Food Batchmakers
- Human Factors Engineers and Ergonomists
- Audio and Video Technicians
- Broadcast Technicians
- Nurse Anesthetists
- Environmental Science and Protection Technicians, Including Health
- Textile Cutting Machine Setters, Operators, and Tenders
- Stone Cutters and Carvers, Manufacturing
- First-Line Supervisors of Material-Moving Machine and Vehicle Operators
- Conservation Scientists
- Nuclear Monitoring Technicians
- Environmental Science Teachers, Postsecondary
- Animal Breeders
- Locomotive Engineers
- Physical Medicine and Rehabilitation Physicians
- Fiberglass Laminators and Fabricators
- Molders, Shapers, and Casters, Except Metal and Plastic
- Tapers
- Photographic Process Workers and Processing Machine Operators
- Hydrologists
- Food Scientists and Technologists
- Furniture Finishers
- Conveyor Operators and Tenders
- Costume Attendants
- Rock Splitters, Quarry
- Cutting, Punching, and Press Machine Setters, Operators, and Tenders, Metal and Plastic
- Museum Technicians and Conservators
- Farmworkers and Laborers, Crop, Nursery, and Greenhouse
- Pesticide Handlers, Sprayers, and Applicators, Vegetation
- Fabric and Apparel Patternmakers
- Forest and Conservation Workers
- Technical Writers
- Opticians, Dispensing
- Civil Engineers
- Career/Technical Education Teachers, Middle School
- Logistics Engineers
- Agricultural Equipment Operators
- Recycling Coordinators
- Airfield Operations Specialists
- Architecture Teachers, Postsecondary
- Fish and Game Wardens
- Cleaning, Washing, and Metal Pickling Equipment Operators and Tenders
- Chemistry Teachers, Postsecondary
- Craft Artists
- Athletes and Sports Competitors
- Architectural and Civil Drafters
- Electrical and Electronics Drafters
- Hearing Aid Specialists
- Mixing and Blending Machine Setters, Operators, and Tenders
- Postmasters and Mail Superintendents
- Landscaping and Groundskeeping Workers
- Quality Control Systems Managers
- Zoologists and Wildlife Biologists
- Heat Treating Equipment Setters, Operators, and Tenders, Metal and Plastic
- Helpers--Roofers
- Chemists
- Cargo and Freight Agents
- Agricultural Sciences Teachers, Postsecondary
- Sound Engineering Technicians
- Log Graders and Scalers
- Medical Equipment Preparers
- Security Managers
- Foresters
- Shoe and Leather Workers and Repairers
- Bridge and Lock Tenders
- Wholesale and Retail Buyers, Except Farm Products
- Mining and Geological Engineers, Including Mining Safety Engineers
- Shuttle Drivers and Chauffeurs
- Oral and Maxillofacial Surgeons
- Meter Readers, Utilities
- Environmental Compliance Inspectors
- Upholsterers
- Water Resource Specialists
- Microbiologists
- Cement Masons and Concrete Finishers
- Helpers--Production Workers
- Security Management Specialists
- Geodetic Surveyors
- Surgical Assistants
- Forestry and Conservation Science Teachers, Postsecondary
- Endoscopy Technicians
- Chefs and Head Cooks
- Bus Drivers, School
- Plasterers and Stucco Masons
- Computer Hardware Engineers
- Farm and Home Management Educators
- Transportation, Storage, and Distribution Managers
- Buyers and Purchasing Agents, Farm Products
- Packers and Packagers, Hand
- Geoscientists, Except Hydrologists and Geographers
- Anesthesiologist Assistants
- Property, Real Estate, and Community Association Managers
- Graders and Sorters, Agricultural Products
- Aircraft Cargo Handling Supervisors
- Network and Computer Systems Administrators
- Radiation Therapists
- Natural Sciences Managers
- Supply Chain Managers
- Sustainability Specialists
- Computer Systems Engineers/Architects
- Media Programming Directors
- Cytogenetic Technologists
- Medical and Clinical Laboratory Technicians
- Reinforcing Iron and Rebar Workers
- Textile Knitting and Weaving Machine Setters, Operators, and Tenders
- Landscape Architects
- Surveyors
- Biological Science Teachers, Postsecondary
- Audiologists
- Histotechnologists
- Light Truck Drivers
- Veterinary Technologists and Technicians
- Atmospheric, Earth, Marine, and Space Sciences Teachers, Postsecondary
- Interior Designers
- Industrial Ecologists
- Molecular and Cellular Biologists
- Chief Sustainability Officers
- Emergency Management Directors
- Pest Control Workers
- Butchers and Meat Cutters
- Cleaners of Vehicles and Equipment
- Anesthesiologists
- Computer Network Architects
- Animal Scientists
- Camera Operators, Television, Video, and Film
- Information Technology Project Managers
- Shipping, Receiving, and Inventory Clerks
- Agricultural Inspectors
- Funeral Home Managers
- Order Clerks
- Textile Bleaching and Dyeing Machine Operators and Tenders
- Ophthalmic Medical Technologists
- First-Line Supervisors of Food Preparation and Serving Workers
- Pourers and Casters, Metal
- Tile and Stone Setters
- Administrative Services Managers
- Respiratory Therapists
- Food and Tobacco Roasting, Baking, and Drying Machine Operators and Tenders
- Computer Network Support Specialists
- Chemical Technicians
- Computer and Information Research Scientists
- Ambulance Drivers and Attendants, Except Emergency Medical Technicians
- Painters, Construction and Maintenance
- Critical Care Nurses
- Loss Prevention Managers
- Farm Labor Contractors
- Solar Sales Representatives and Assessors
- Food Service Managers
- Purchasing Agents, Except Wholesale, Retail, and Farm Products
- Chiropractors
- Sports Medicine Physicians
- Gambling Managers
- Photographers
- Prosthodontists
- Astronomers
- Security Guards
- Prepress Technicians and Workers
- Magnetic Resonance Imaging Technologists
- Podiatrists
- Surgical Technologists
- Veterinary Assistants and Laboratory Animal Caretakers
- Histology Technicians
- Health Specialties Teachers, Postsecondary
- Urologists
- Extruding and Drawing Machine Setters, Operators, and Tenders, Metal and Plastic
- Diagnostic Medical Sonographers
- Industrial Truck and Tractor Operators
- Brownfield Redevelopment Specialists and Site Managers
- Logisticians
- Food Science Technicians
- Procurement Clerks
- Physicists
- Biological Technicians
- Veterinarians
- Geographic Information Systems Technologists and Technicians
- Subway and Streetcar Operators
- Online Merchants
- Appraisers of Personal and Business Property
- Slaughterers and Meat Packers
- Art, Drama, and Music Teachers, Postsecondary
- Park Naturalists
- Parking Enforcement Workers
- Lifeguards, Ski Patrol, and Other Recreational Protective Service Workers
- Chief Executives
- Appraisers and Assessors of Real Estate
- Regulatory Affairs Managers
- Environmental Restoration Planners
- Orthodontists
- Coroners
- Obstetricians and Gynecologists
- Real Estate Sales Agents
- Sewers, Hand
- Tailors, Dressmakers, and Custom Sewers
- Radio Frequency Identification Device Specialists
- Skincare Specialists
- Driver/Sales Workers
- Ophthalmic Medical Technicians
- Nursing Assistants
- Weighers, Measurers, Checkers, and Samplers, Recordkeeping
- Gem and Diamond Workers
- Emergency Medicine Physicians
- Occupational Therapists
- Office Machine Operators, Except Computer
Source: O*NET database (knowledge)