Certified Water/Wastewater Maintenance Tech. II (CWWMT II)

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Covers fundamentals of welding, discusses welding safety considerations and precautions. Covers both oxyfuel and arc welding equipment. Describes welding techniques and symbols. Discusses ways to avoid weld faults.

Lesson 1: Fundamentals of Welding 

Lesson 2: Welding Safety 

Lesson 3: Oxyfuel Welding Equipment 

Lesson 4: Arc Welding Equipment 

Lesson 5: Welding Techniques 

Lesson 6: Avoiding Weld Faults 

Lesson 7: Welding Symbols

Introduces electron theory, static electricity, electrons in motion, and magnetism. Covers basic methods of measuring current, voltage and resistance. Explains circuit components: conductors, insulators, resistors, capacitors, and simple Ohm’s Law calculations for DC and AC circuits.

Lesson 1: Introduction to Electricity 

Lesson 2: Static Electricity 

Lesson 3: Current Electricity 

Lesson 4: Magnetism 

Lesson 5: Current, Resistance and Potential Difference 

Lesson 6: Electrical Components 

Lesson 7: Conductors 

Lesson 8: DC Circuits 

Lesson 9: AC Circuits 

Lesson 10: Electronics

Covers the types and operating principles of common single-phase motors. Explains NEMA motor standards. Explains how to identify motor leads on split phase, capacitor-start, capacitor-run, permanent split capacitor, and repulsion motors. Also covers universal motors, shaded pole motors, and other special types, including synchro and servo systems. Gives general maintenance procedures on all single-phase motors.

Lesson 1: Introduction to Single Phase Motors 

Lesson 2: Split-Phase Motors 

Lesson 3: Capacitor Motors 

Lesson 4: Repulsion Motors 

Lesson 5: Universal Motors 

Lesson 6: Special Motors 

Lesson 7: Synchros 

Lesson 8: Servos 

Lesson 9: Motor Installation 

Lesson 10: Motor Maintenance

Covers force and motion, work and energy, and fluid mechanics as applied in industrial maintenance. Explains principles of operation for simple machines, such as the lever, inclined plane, wheel and axle, pulley, and screw. Explains the basic elements of industrial machines, as well as common measurement tools used to monitor and adjust equipment. Covers hand tools, power tools and fasteners, ending with a discussion of ways to reduce friction and wear.

Lesson 1: Force and Motion 

Lesson 2: Work, Energy, and Power Lesson 3: Fluid Mechanics 

Lesson 4: Spimle Machines 

Lesson 5: Machine Elements 

Lesson 6: Measuring Tools and Instruments 

Lesson 7: The Safe Use of Hand Tools 

Lesson 8: The Safe Use of Portable Power Tools 

Lesson 9: Fasteners 

Lesson 10: Friction and Wear

Covers a complete lubrication program, including functions and characteristics of lubricants, and effects of additives. Oils, greases, and other compounds used for lubrication are described, as well as their applications. Lubrication methods and recommended storage and handling procedures are included.

Lesson 1: Principles of Lubrication 

Lesson 2: Lubricant Characteristics 

Lesson 3: Additives, Lubricating Action, and Bearing Lubrication 

Lesson 4: Oils and Their Applications 

Lesson 5: General-Purpose Grease 

Lesson 6: Special-Purpose Greases and Dry Film Lubricants 

Lesson 7: Lubrication Systems and Methods 

Lesson 8: Automatic Lubrication Methods 

Lesson 9: Lubrication Storage and Handling 

Lesson 10: Lubrication Management

Covers principles and applications of various types of bearings, including plain journal, ball, and roller bearings. Explains installation, inspection and repair of bearings. Deals with specialized bearings, including powdered-metal, nonmetallic, and hydrostatic bearings. Covers bearings, seals, lubrication, and maintenance practices.

Lesson 1: Bearings and Shafts 

Lesson 2: Plain Journal Bearings I 

Lesson 3: Plain Journal Bearings II 

Lesson 4: Antifriction Bearings I 

Lesson 5: Antifriction Bearings II 

Lesson 6: Ball and Roller Bearings 

Lesson 7: Specialized Bearings 

Lesson 8: Carbon 

Lesson 9: Lubrication 

Lesson 10: Bearing Maintenance

Covers belt drives, chain drives, gears and gear drives, adjustable-speed drives, shaft alignment, shaft coupling devices, and clutches and brakes.

Lesson 1: Belt Drives 

Lesson 2: Chain Drives 

Lesson 3: Gears 

Lesson 4: Gears Drives 

Lesson 5: Adjustable-Speed Drives 

Lesson 6: Shaft Alignment 

Lesson 7: Shaft Coupling Devices 

Lesson 8: Clutches and Brakes

Covers piping and tubing systems used for fluid transport in the plant: hydraulic fluid, steam, liquefied product, refrigerant, and water. Shows typical metallic and nonmetallic piping systems, pipe joining methods, and how tubing and hoses differ from piping. Covers valves, pipe fittings, hangers, supports, and insulation, and shows how tubing is sized, fitted, bent, and joined.

Lesson 1: Introduction to Piping Systems 

Lesson 2: Metal Pipe 

Lesson 3: Nonmetal Pipe 

Lesson 4: Tubing 

Lesson 5: Hoses 

Lesson 6: Fittings 

Lesson 7: Common Valves 

Lesson 8: Specialized Valves 

Lesson 9: Strainers, Filters and Traps 

Lesson 10: Accessories

Covers hydraulic principles, types of hydraulic fluids and their characteristics. Describes components of the hydraulic system and their functions, including: filters, piping, strainers, reservoirs, accumulators, pumps, piping, tubing, and hoses, control valves, relief valve, and actuating devices.

Lesson 1: Principles of Hydraulics 

Lesson 2: Hydraulic Fluid 

Lesson 3: Strainers and Filters 

Lesson 4: Reservoirs and Accumulators 

Lesson 5: Hydraulic Pumps 

Lesson 6: Tubing and Fittings 

Lesson 7: Directional Control Valves 

Lesson 8: Pressure Control Valves 

Lesson 9: Cylinders 

Lesson 10: Hydraulic Motors

Covers how work, force and energy are applied to principles of pneumatics. Shows operating principles of reciprocating, positive displacement, rotary, and dynamic air compressors. Covers primary and secondary air treatment. Includes valves, logic devices, cylinders, and air motors.

Lesson 1: Pneumatic Principles 

Lesson 2: Reciprocating Compressors 

Lesson 3: Rotary Compressors 

Lesson 4: Primary Air Treatment 

Lesson 5: Secondary Air Treatment 

Lesson 6: Piping, Hoses, and Fittings 

Lesson 7: Directional Control Valves 

Lesson 8: Pressure Control Valves 

Lesson 9: Pneumatic Cylinders 

Lesson 10: Pneumatic Motors and Rotary Actuators

Covers techniques and safeguards in the use of rope, chain, hoists, and scaffolding when moving heavy plant equipment and maintaining plant utilities.

Lesson 1: Introduction to Industrial Rigging 

Lesson 2: Wire Rope and Wire Rope Slings 

Lesson 3: Chain and Wire Mesh Slings 

Lesson 4: Fiber Rope and Webbing Slings 

Lesson 5: Industrial Hoists and Cranes 

Lesson 6: Operating Practices 

Lesson 7: Scaffolds and Ladders

Covers alignment, particularly coupling alignment. Includes installation and maintenance of mechanical drives, from chain drives to enclosed gear drives.

Lesson 1: Chain Drives 

Lesson 2: Belt Drives 

Lesson 3: Open Gear Drives 

Lesson 4: Enclosed Gear Drives 

Lesson 5: Drive Couplings