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SkillsMP has collected 957 skills from wonsukchoi/domain-experts. Open a skill to review its source and details.
wonsukchoi/domain-expertsShowing 40 of 957 collected skills.
Use when a task needs the judgment of a Boilermaker — qualifying or selecting a welding procedure for a pressure-boundary repair, deciding whether a defect is a code "repair" or an "alteration" under the National Board Inspection Code, sizing a tube-to-drum…
Use when a task needs the judgment of a construction laborer — determining which OSHA-mandated protective system (sloping, benching, shoring, or shielding) a trench needs given its soil classification and depth, working as spotter/signal person on a crane or…
Use when a task needs the judgment of a construction/maintenance painter — scoping an exterior or interior repaint, diagnosing why a paint job failed (blistering, alligatoring, peeling), pricing a job against real coat-count and prep requirements, deciding…
Use when a task needs the judgment of a Fence Erector — sizing post footing depth and diameter against frost line and wind load, verifying a boundary survey before setting posts on a property line, specifying a pool or child-safety barrier to code,…
Use when a task needs the judgment of a hazardous materials removal worker — verifying negative-pressure asbestos containment integrity before and during Class I removal, sizing negative air machines and calculating required air changes per hour, selecting…
Use when a task needs the judgment of an Operating Engineer — re-checking a crane's load chart before a pick when the working radius will change mid-lift, deciding whether a utility locate mark requires hand-digging before mechanized excavation, verifying…
Use when a task needs the judgment of a Pipelayer — setting or verifying gravity-sewer or water-main grade from stationed invert elevations, classifying trench soil and selecting a protective system under OSHA Subpart P, selecting bedding class and compaction…
Use when a task needs the judgment of a plasterer / stucco mason — laying out control joints on a large stucco elevation, scheduling cure time between scratch/brown/finish coats against a construction deadline, specifying weather-resistive-barrier and lath…
Use when a task needs the judgment of a reinforcing iron and rebar worker — computing a Class A/B tension lap-splice length for a specific bar size, grade, and concrete strength before a pour, verifying concrete-cover distances and chair/bolster heights…
Use when a task needs the judgment of a Solar Photovoltaic Installer — sizing a PV string against cold-weather Voc and inverter max input voltage, specifying rapid-shutdown equipment to meet NEC 690.12, sizing a backfeed breaker against the NEC…
Use when a task needs the judgment of a Stonemason — selecting a stone type/density class for a climate's freeze-thaw exposure, sizing stone-veneer anchor spacing from unit weight and rated anchor capacity, laying out a dry-stack wall's batter for gravity…
Use when a task needs the judgment of a Tile and Stone Setter — selecting a shower waterproofing method against the drain type, specifying mortar coverage and trowel size for large-format tile or a wet area, setting a lippage tolerance and leveling-clip plan,…
Use when a task needs the judgment of a Brickmason/Blockmason — selecting mortar type for a load-bearing vs. veneer application, sizing and placing control or expansion joints, specifying veneer-tie spacing and cavity-wall drainage/weep-hole layout, applying…
Use when a task needs the judgment of a Carpenter — sizing a header for a bearing-wall opening, laying out and cutting stair stringers to code, checking a rough opening before a door or window goes in, deciding whether framing lumber is dry enough to close…
Use when a task needs the judgment of a cement mason / concrete finisher — timing float and trowel work against bleed water and set, laying out and cutting control joints on a slab, choosing air-entrainment and mix parameters for freeze-thaw exposure,…
Use when a task needs the judgment of a Construction and Building Inspector — deciding whether a phase of work passes a hold-point inspection (foundation, framing, rough-in, insulation, final) or gets red-tagged, writing a correction notice that will hold up…
Use when a task needs the judgment of a Construction Trades Supervisor (foreman) — allocating a crew's daily task assignments against a labor-unit budget, deciding whether today's scope requires a formally designated OSHA competent person, arbitrating a…
Use when a task needs the judgment of a drywall and ceiling tile installer — specifying a fire-rated wall/ceiling assembly to a UL design number, hitting an STC target on a demising wall, choosing board type for a wet area, placing control joints on a long…
Use when a task needs the judgment of a licensed elevator mechanic — diagnosing a governor or safety-circuit fault, planning or witnessing a Category 1/Category 5 periodic test, sequencing an elevator or escalator installation/modernization to code, or…
Use when a task needs the judgment of a glazier — selecting glass type for a hazardous-location or code-compliant repair, sizing glass against a wind-load design pressure for a storefront or curtain-wall opening, specifying setting blocks and edge clearance…
Use when a task needs licensed plumber/pipefitter/steamfitter judgment — sizing DWV or water-supply pipe by fixture-unit tables, selecting a backflow-prevention device by cross-connection hazard class, diagnosing trap-seal loss or slow drains from…
Use when a task needs the judgment of a Roofer — planning fall protection and anchor points for a steep-slope job, specifying a nailing pattern against a wind-zone rating, matching a roofing system to a measured slope, sizing and balancing attic…
Use when a task needs the judgment of a sheet metal worker fabricating and installing HVAC ductwork — selecting duct gauge for a pressure class and dimension, laying out a transition or offset fitting, resolving a field obstruction against static-pressure and…
Use when a task needs the judgment of a structural iron and steel worker — deciding how many bolts and which pretensioning method a connection needs before a crane hook can release, setting fall-protection posture for a specific height band and role…
Use when a task needs the judgment of an audiovisual equipment installer/repairer — diagnosing an EDID or HDCP handshake failure between a source and a display, sizing a display's screen size and brightness for a room's viewing distance and ambient light,…
Use when a task needs the judgment of an auto-glass installer/repairer — deciding whether a chip or crack qualifies for resin repair versus full replacement, calculating a safe drive-away time for the adhesive and conditions on a job, determining whether a…
Use when a task needs the judgment of a Coin, Vending, and Amusement Machine Servicer and Repairer — triaging a jam across bill validators, coin mechanisms, refrigerated vending units, and arcade/amusement PCBs on a route, setting restock par levels against…
Use when a task needs the judgment of a Commercial and Industrial Electronics Repairer — diagnosing a VFD fault trip on a production line, tracing a PLC I/O fault back to the sensor, the wiring, or the ladder logic, selecting arc-flash PPE for live-panel…
Use when a task needs the judgment of an electric-motor and power-tool repairer — reading a megohmmeter/polarization-index test to catch a winding fault before failure, deciding rewind vs. replace on a failed induction motor, isolating a bearing fault from a…
Use when a task needs the judgment of a general maintenance and repair worker — triaging a mixed work-order queue at an apartment complex, school, or small commercial building, deciding whether a repair is safe to DIY or must be escalated to a licensed…
Use when a task needs the judgment of a Machinery Maintenance Worker — running a lubrication/PM route and deciding what's normal wear versus a leading indicator worth flagging, setting duty-cycle-adjusted relube intervals and grease quantities, checking belt…
Use when a task needs the judgment of a Mechanical Door Repairer — diagnosing an out-of-balance garage or overhead door, sizing and replacing torsion springs by cycle life instead of weight chart alone, verifying UL 325 entrapment protection on an automatic…
Use when a task needs senior 12V/mobile-electronics installer judgment — wiring an amplifier and subwoofer(s) to a safe final impedance, setting amplifier gain against a measured reference instead of by ear, integrating remote start/alarm with a vehicle's…
Use when a task needs the judgment of a Refractory Materials Repairer — selecting a refractory class for a furnace or kiln zone's actual temperature and atmosphere, building a dry-out/cure schedule for castable refractory, sizing expansion joints in a new…
Use when a task needs the judgment of a telecommunications equipment installer/repairer — certifying a structured-cabling run against TIA-568 channel and permanent-link limits, sizing a PoE power budget for a device at the end of a long cable run, triaging a…
Use when a task needs the judgment of a Transportation Electrical and Electronics Installer/Repairer — isolating a multiplex-network fault that presents as symptoms on two unrelated bus/rail-car systems at once, sizing and derating a harness repair for a…
Use when a task needs the judgment of a bicycle repairer — diagnosing drivetrain skip and quoting chain-vs-cassette replacement, torquing carbon components to spec, bleeding hydraulic disc brakes, truing a wheel to tension (not just by eye), or deciding…
Use when a task needs the judgment of a camera-equipment repairer — diagnosing sensor dust vs. lens contamination, deciding whether a shutter is nearing end-of-life and should be replaced vs. repaired, calibrating autofocus and lens collimation, isolating…
Use when a task needs the judgment of a Control and Valve Installer/Repairer — sizing a control valve's Cv against actual process flow, diagnosing a limit-cycling control loop as valve stiction versus a bad PID tune, running an FCI 70-2 seat-leakage or API…
Use when a task needs the judgment of a Manufactured Home Installer — siting and grading a home site, sizing piers and footings against actual soil-bearing capacity, specifying wind-zone-rated anchoring and tie-downs, closing a multi-section marriage line and…