pipe fitter

journeyman

Qualified trade worker

• apprenticeLearner bound to employer
• tradesmanSkilled manual worker
• craftsmanSkilled manual worker

union · skilled · trade school · steamfitter · boilermaker · plumber · mechanic · technician · installer · contractor

welding

Heat-fusing metal pieces

• brazingFiller-metal bonding process
• solderingLow-temp metal fusion
• threadingPassing strand through opening

grooved · flanged · fusion · tig · mig · arc · stick · torch · flux · joint

cutting

Dividing via sharp edge

• threadingPassing strand through opening
• bendingCurving from straight
• groovingDancing enjoyably to music

beveling · reaming · measuring · layout · prefabrication · vise · threader · bender · torch · grinding

valves

Flow-controlling mechanisms

• flangesProjecting rims for attachment
• couplingsDevices joining two parts
• elbowsArm's middle joints

tees · reducers · unions · nipples · gaskets · bolts · studs · headers · manifolds · risers

hydraulics

Study of pressurized liquids

• pneumaticsPhysics of gas mechanics
• steamHeated water's gaseous form
• HVACIndoor climate management

fire suppression · sprinkler · chilled water · heating · cooling · compressed air · natural gas · refrigeration · drainage · sanitary

calipers

Adjustable-jaw measuring device

• micrometerMillionth of a meter
• toleranceWillingness to accept difference
• measurementDetermining size or amount

gauge · alignment · level · plumb · square · accuracy · dimensional · clearance · gap · offset

blueprint

Detailed technical drawing

• scaffoldingTemporary exterior work platform
• hardhatProtective construction headwear
• siteDesignated location

installation · layout · schematics · specifications · assembly · rigging · crane · trenching · penetrations · hangers

• tradespeopleelectrician, plumber, carpenter, painter, bricklayer
• metalworkersblacksmith, blacksmiths, silversmith, silversmiths, goldsmith
• workersworkers, employee, employees, laborer, laborers
• construction workersconstruction worker, laborer, foreman, site foreman, site supervisor
• factory workersfactory worker, factory hand, assembly line worker, floor worker, machine operator
• minersminer, coal miner, gold miner, forty-niner, overman