Commercial Divers

Take appropriate safety precautions, such as monitoring dive lengths and depths and registering with authorities before diving expeditions begin.

Check and maintain diving equipment, such as helmets, masks, air tanks, harnesses, or gauges.

Communicate with workers on the surface while underwater, using signal lines or telephones.

Descend into water with the aid of diver helpers, using scuba gear or diving suits.

Mechanical

Knowledge of machines and tools, including their designs, uses, repair, and maintenance.

Building and Construction

Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads.

Physics

Knowledge and prediction of physical principles, laws, their interrelationships, and applications to understanding fluid, material, and atmospheric dynamics, and mechanical, electrical, atomic and sub-atomic structures and processes.

Critical Thinking

Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions, or approaches to problems.

Active Listening

Giving full attention to what other people are saying, taking time to understand the points being made, asking questions as appropriate, and not interrupting at inappropriate times.

Operations Monitoring

Watching gauges, dials, or other indicators to make sure a machine is working properly.