This workbook is intended as a basic boot camp level of training for refrigeration and air conditioning. Basic skills needed to successfully integrate into an operating HVACR business as a recruit ...

Chemistry Fundamentals is an introductory course which will equip you with the knowledge of basic chemistry concepts in preparation for entry into further studies. The course covers the foundational ...

The alternating current (AC) waveforms refer to continually changing time-varying voltages and currents. In a set manner from a minimum to a maximum value in a specific time interval, the magnitude ...