Students examine AutoCAD toolbars and toolbar commands. They then test their knowledge in a matching exercise.

In this interactive object, learners test their knowledge of 14 geometric tolerance control symbols.

Learners observe how to cascade PLC counters to extend the maximum count of one counter.

Learners read an explanation of how to connect two 7485 ICs to compare binary numbers by creating an 8-bit comparator. Diagrams and charts are presented.

Learners study the method of cascading two or more PLC timers to extend their time capacity.