Know the hazards that may be faced during confined space entry, including information on the mode, signs or symptoms, and consequences of exposure.
Be aware of the possible behavioral effects of hazard exposure in entrants.
Continuously maintain an accurate count of entrants in the confined space.
Remain outside the confined space during confined space operations until relieved by another attendant
Maintain communications with entrants to monitor entrant status and to alert entrants of the need to evacuate the confined space, use of portable monitors when necessary to sample air quality in the work area.
Call rescue and other emergency services as soon as it is determined that entrants may need assistance to escape from the confined space.
Monitor activities inside and outside the confined space to determine if it is safe for the entrants to remain in the space and orders the entrants to evacuate the confined space immediately under any of the following conditions: if the attendant detects a prohibited condition; if the attendant detects the behavioral effects of hazard exposure; if the attendant detects a situation outside the confined space that could endanger the entrants; or if the attendant cannot effectively and safely perform all the required duties.
Install and fix together prefabricated steel grinders, pipework, and beam sections that make up the framework of buildings and other structures.
Set up hoisting equipment for raising placing structural steel members.
Fasten steel members to cable of the hoist, using a chain, cable, or rope.
Signal worker operating hoisting equipment to lift place steel members.
Force members into the final position, using turnbuckles, crowbars, jacks, and hand tools.
Align rivet holes in members with corresponding holes in previously placed members by driving drift pins or handle of wrench through holes.
Verify the vertical and horizontal alignment of members, using the plumb bob level.
Boit aligned members to keep them in position until when they can be permanently riveted, bolted, or welded in place.
May specialize in erecting or repairing specific types of structures be designated bridge-Maintenance worker; Chimney builder, Reinforced Concrete; Scaffold Builder, Metal; Structural-Steel-Equipment Erector.