Same word, different worlds: everyday words with a second job across the trades
One short word can name a tool, a test, a defect or a hazard, depending on whose jobsite you are standing on. These are the best of them.
Ask for the stinger on four jobsites and you will get three different things. The welder passes over the electrode holder that grips the rod. The concrete crew hands you a stinger of another kind, the vibrating head that shakes the air out of fresh concrete, and refractory installers push the same sort of stinger into wet castable. A lineman just points up the pole at the stinger, the lead that drops from a fuse cutout to a transformer. Specialist vocabularies draw on the same small stock of plain English, and each trade bends the words to its own work. Most of the time that is harmless. Occasionally it is how two people end up having two different conversations.
Verbs that changed jobs
In concrete, a load that starts to kick is setting early, and the finishers suddenly have less time than they planned. Adhesive users say the same about resin that kicks in the mixing cup. In a rail yard, to kick cars is to shove them, uncouple on the move and let them roll free onto a track. In a substation, the breaker kicked means it tripped. And in a laser lab, a tech will kick a mode-locked laser, tapping the cavity so the pulses can start.
A machinist will bump a tool offset by a thou to bring a size in. A boiler tech will bump a pump for a second to check its rotation, exactly as a motor electrician will bump a new motor before running it. A paving crew will bump the joint, pushing excess mix back onto the fresh mat with a lute. A lighting operator will bump a channel straight to full. And on the railroad, to bump someone is to use seniority to take their job, which is the only one of these that can ruin a week. Few words in any shop are busier.
Words worth a second look
Some words mean danger everywhere, just different danger. To an electrician, hot is the live conductor, and anything energized is hot. In a nuclear plant, hot means radioactive or contaminated. "Is that hot?" is the right question in both places, and the answer calls for completely different gloves.
In a weld shop, a shot is a radiograph: "the tie-in got shot and it's clean." The radiographer calls the exposure a shot too, so the two trades describe the same event from opposite sides of the film. A maintenance tech's shot is one full stroke of a grease gun. A laser physicist's shot is a single pulse. And on a meltblown nonwovens line, shot is a defect: small beads of polymer that never became fiber. Few words lead more lives.
In a fiber room, a jumper is a short patch cable with connectors on both ends. In a nuclear plant, a jumper is a person: a worker who enters a very high radiation space for a few minutes and spends a large dose allowance doing one quick job.
Messy words
Trades love food words and dirt words. Concrete crews call fresh concrete mud. Duct installers call sealing mastic mud and brush it over every seam. Refractory workers use mud for the clay that plugs a blast furnace taphole, and for bricklaying mortar.
In concrete, soup is a load so wet it runs like liquid, usually because someone added water to the truck. In lubrication, soup is grease that broke down, or got mixed with an incompatible type, and turned runny. Either way it is bad news, and somebody is going to ask who did it.
Three words, ten objects
A trace to a fiber tech is the graph an OTDR draws of light along the glass. A trace to a board designer is a copper path etched on a layer. A gear inspector reads a trace from the gear checker, a plotted tooth profile sitting between tolerance bands.
In fiber, the core is the thin center where the light travels. In concrete, a core is a cylinder drilled out of a structure for testing, and paving crews pull an asphalt core from the finished mat for the same reason. In circuit boards, a core is cured laminate with copper on both sides. In nonwovens, the core is the paperboard tube the fabric is wound on.
The ballast under a railroad is crushed rock that holds the ties in line and drains water away. The ballast in a light fixture is the device that starts a lamp and keeps its current from running away. Both hold something steady. That is where the resemblance ends.
Small parts, different jobs
A pigtail to an electrician is a short wire spliced into a bundle so only one lead lands on the device, and HVAC techs use pigtail the same way. A fiber pigtail is a short fiber with a factory connector on one end, spliced onto a cable. A boiler pigtail is a looped tube that fills with water so live steam never reaches the pressure gauge.
A traveler to an electrician is one of the two wires between three-way switches. To a heat treater, the traveler is the paperwork that rides with a load through the shop, recording every furnace and result.
A coating inspector's holiday is never a day off. It is a bare spot through the paint, a powder coater's holiday is the same skip on a cured part, and a waterproofer's holiday is a gap in a membrane. A hydrographer's holiday is a gap in the survey data. In every case, it means a gap in coverage that has to be found and filled.
Five to keep straight
- Hot: ask whether the speaker means volts or radiation before reaching for gloves.
- Shot: an X-ray in a weld shop, one pump at a grease fitting, one pulse in a laser lab.
- Kick: concrete and resin kick when they set, rail cars get kicked, breakers kick when they trip.
- Stinger: electrode holder, concrete vibrator or transformer lead, depending on the uniform.
- Holiday: in any trade, a gap in coverage that has to be filled.