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Read through the material below, then test your understanding.
Module Lessons
Scientific Principles
SI Units and Measurement
Properties of Solid Materials (Metals)
Properties of Solid Materials (Plastics & Ceramics)
Mechanical Properties
Corrosion of Metals
Other Forms of Corrosion
Degradation of Plastics
Properties of Liquids (Water)
Properties of Liquids (Others)
Properties of Gases
Temperature and Heat
States of Matter
Sensible and Latent Heat
Conduction and Convection
Radiation and Expansion
Energy, Heat, and Power Calculations
Velocity, Acceleration, and Flow Rate
Force and Pressure
Siphonic Action
Mechanical Principles
Forces in Action
Lesson Overview
This lesson covers the primary forms of metal corrosion encountered in domestic plumbing systems beyond basic atmospheric oxidation. You will learn the causes, visual signs, and prevention methods for dezincification, galvanic action, erosion, and pitting.
Learning Objectives
Identify the causes, visual symptoms, and prevention methods for dezincification in brass fittings
Explain the principles of galvanic corrosion using the electromotive series and the three required conditions
Describe the mechanisms of erosion and pitting corrosion and how good plumbing practice prevents system failure
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