A technical drawing course provides foundational knowledge and skills in using standardized graphical methods to communicate ideas and design information, essential for various industries like engineering and architecture. 

A power system course typically covers the fundamentals of generating, transmitting, and distributing electrical power, including the analysis of various components and their behavior under different conditions, aiming to ensure reliable and efficient electricity supply

This unit enables the learner to learn  the devices that convert electrical energy into mechanical energy (motors), mechanical energy into electrical energy (generators), or alter electrical energy from one form to another (transformers)