A Sample DC/AC I Exam
By Patrick Hoppe
Students complete a sample exam for DC/AC I. It provides an overview of the material presented in the course.
By Terry Bartelt
Learners examine the different types of lines used on a P&ID diagram and the types of connections they represent. They test their knowledge in a matching exercise.
By Terry Bartelt, Stephen Schneider
In this animated object, learners examine the internal structure of an unloading valve. This learning object includes a video clip demonstrating the use of an unloading valve in a metal stamping application.
Noninverting Op Amp
In this animated object, learners examine the fundamental operation of a noninverting operational amplifier. A brief quiz completes the activity.
Oscilloscope AC Voltage Measurements
In this animated learning object, students view the operation of an oscilloscope that is used to measure AC voltages. A brief quiz completes the activity.
Ammeter Circuit Connections
In this animated activity, students view a step-by-step approach of how to connect an ammeter to a circuit. A brief quiz concludes the lesson.
Boolean Theorems (Single Variable)
Students analyze the eight single variable Boolean theorems and their expressions.
Designing a Cylinder Dwell Circuit
This animated lesson shows how a ladder circuit uses timer-on delays to cause an extrusion machine to operate.
In this animated activity, learners examine the three main segments of a hydraulic system: power supply, control, and output. A brief quiz completes the learning object.
Learners view an animation of a counterbalance valve in operation and examine the valve’s internal structure.
Learners study animation showing the operation of an AC wound-rotor motor with its external starting resistors. A short quiz completes the activity.
DC Compound Motors
Learners study animation showing the operation of cumulative and differential DC compound motors. A short quiz completes the activity.
Capacitive Proximity Sensors
In this animated object, learners examine the operation of a capacitive proximity sensor. A brief quiz completes the activity.
Learners observe how to cascade PLC counters to extend the maximum count of one counter.
How Current Requires Voltage
This learning activity uses a water pressure analogy to present the concept that voltage pressure is required to cause current flow.
Ohm's Law: Current
By Tim Tewalt, Patrick Hoppe
Learners study animated rheostat settings that show how current flow is inversely proportional to resistance. Ten review questions complete the learning object.
Inductor Series - Parallel: Practice Problems
Students complete 10 practice problems.
The schematic symbols of logic gates used in digital circuits are shown.
Clock Pulse Triggering of Flip-Flops
This learning object shows the symbols used to represent the type of pulse required at the clock input to activate flip-flops.
Interpreting Engineering Drawings: Title and Revision Blocks
By Glenn Sokolowski
Learners examine the information on a title block and answer questions about that information in an interactive quiz.
By James Bourassa
In this interactive object, learners view various components of gears and read descriptions of them. Learners then identify the location of each of these components in a drag-and-drop exercise.
The Zener Diode
In this animated object, learners examine the operation of a zener diode in the forward and reverse bias conditions. A quiz completes the activity.
In this animated object, learners examine how aeration develops in a hydraulic pump. A brief quiz completes the activity.
Comparing Electronic and Hydraulic Components
Learners read about the similarities of electronic and hydraulic components and then match the schematic symbols in a drag-and-drop exercise.
Hydraulic Cylinder Speed
In this interactive and animated object, learners examine why the piston of a hydraulic cylinder extends slower than it retracts. A brief quiz completes the activity.