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Pipelayers, plumbers, pipefitters, and steamfitters
Description: Plumbers install and repair water, waste disposal, drainage, and gas pipe systems in homes and other buildings. They also install showers, sinks, toilets, and appliances. Pipelayers, pipefitters, and steamfitters install and repair the pipe systems used in manufacturing, creating electricity and heating and cooling buildings. These workers may work nights and weekends, or be on call 24 hours a day. They must be strong enough to lift heavy pipes. Many are self-employed.
Source: Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2008-09 Edition at http://www.bls.gov/OCO/
Salary: $28,001 to $50,000 per year

Comments:

There are 17 math topics Pipelayers, plumbers, pipefitters, and steamfitters need to know.
Basic Math / Algebra
Fractions
Decimals
Ratio and Proportion
Percent
Customary Measurement
Metric Measurement
Measurement Conversion
Basic Problem Solving
First-Year Algebra
Using Formulas
Geometry
Basic Terminology
Angle Measurement
Area
Volume
Make/Use 3D Drawings
Other Topics
Group Problem Solving
Mental Math
Inductive/Deductive Reasoning