How do they match: Commercial Divers

  • Work below surface of water, using surface-supplied air or scuba equipment to inspect, repair, remove, or install equipment and structures. May use a variety of power and hand tools, such as drills, sledgehammers, torches, and welding equipment. May conduct tests or experiments, rig explosives, or photograph structures or marine life.

  • Communicate with workers on the surface while underwater, using signal lines or telephones.
  • Inspect and test docks, ships, buoyage systems, plant intakes or outflows, or underwater pipelines, cables, or sewers, using closed circuit television, still photography, and testing equipment.
  • Recover objects by placing rigging around sunken objects, hooking rigging to crane lines, and operating winches, derricks, or cranes to raise objects.
  • Remove obstructions from strainers or marine railway or launching ways, using pneumatic or power hand tools.
  • Repair ships, bridge foundations, or other structures below the water line, using caulk, bolts, and hand tools.
  • Salvage wrecked ships or their cargo, using pneumatic power velocity and hydraulic tools and explosive charges, when necessary.