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In this lab, you will put into practice the knowledge and concepts from Introduction to Fire Alarm Systems. Using interactive simulations, which give you feedback at each step along the way, you will visit the virtual law firm of Smithers & Abebe...

Learn about trussed rafters and how a trussed rafter roof is constructed. In this course you'll learn the major framing members of a trussed rafter system and the bracing used to safely install trusses on a gable shaped roof.

In this course on Garbage Disposal Troubleshooting, we will explore the troubleshooting and replacement tasks of a garbage disposal. With each scenario, you will be guided with simulation based steps to check for key signs of different inoperable...

In this course, you’ll learn the fundamentals of commercial refrigeration systems. You’ll be introduced to the refrigeration system components and how they operate. You’ll recognize the different types of available commercial refrigeration systems...

Have you ever had an interest in knowing more about exhaust fans and how they operate in the commercial HVAC system? Well, this is the course for you. In this course, you'll learn what exhaust fans are and their function in the commercial HVAC...

In this introductory course, you'll learn what fluid cooling towers are and how the components function to reject and absorb heat. You'll learn about the difference sections and the cleaning and chemical treatment requirements of cooling towers.

In this course, we will introduce you to residential gas piping and the basics of fuel gas in a residential setting, from the point that it enters the home up to the control valve serving individual appliances. We will orient you to the two main...

This course is designed to cover the top 17 changes published in the latest edition of the NEC. Keep in mind, not all states immediately adopt the latest edition of the NEC. Always check with your local authorities which will have the jurisdiction to...

In this course, we'll cover everything you need to know to identify and fix faulty components in a PTAC, including the control board, compressor, heater, transformer, and more. Whether you're dealing with a PTAC that won't turn on, a unit that's not...

This course will introduce learners to basic power tools required for residential and commercial plumbing work across various tasks. We will orient you to their basic characteristics, when they are used, and how they are utilized on the job site. We...