Cascading Timers

By Terry Bartelt

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

AC Voltage Conversion Problems

By John Rosz, Terry Bartelt

Learners work problems to make conversions between RMS, average, peak, and peak-to-peak AC voltages.

Reaction Curve Tuning Example

Learners perform the steps required for the Ziegler-Nichols Reaction Curve Tuning Method. The process identification procedure is performed, calculations are made, and the proper PID values are programmed into the controller.

Fundamentals of a DC Motor

Learners study the interaction between the conductors of the stator and the armature inside a DC motor, which causes the shaft to rotate. A short quiz completes the activity.

Methods of Producing Electricity

In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.

Identifying Lever Classes

By James Bourassa

In this interactive object, learners read an introduction to Class 1, Class 2, and Class 3 levers and then take a quiz.

Diode Approximations

By Patrick Hoppe

This learning object introduces the three approximations of a diode.

Synchronous & Asynchronous Inputs on a JK Flip-Flop

Students examine the operation of synchronous and asynchronous inputs on a JK Flip-Flop.

A Drill for Converting Binary Numbers to Decimal Numbers

By John Rosz

Students test their skill at converting binary numbers to decimal numbers. Immediate feedback is provided.

Basic Elements of Dimensions Used in Engineering Drawings

By Glenn Sokolowski

In this interactive object, students explore the basic elements and common terms associated with dimensions and leaders. A quiz completes the activity.

Hydraulic Schematic Symbol Flashcards

This interactive object is designed to help learners memorize schematic symbols used in hydraulic diagrams. Learners quiz themselves using electronic flashcards.

Pressure-Reducing Valve Application

By Terry Bartelt, Stephen Schneider

In this animated activity, a drill-and-clamp machine is used to show an application of a pressure-reducing valve. Recommendations on how to properly make pressure adjustments are also provided.

Armature Reaction

In this animated activity, learners study how the magnetic field of an armature can distort the DC motor's main magnetic field. A brief quiz completes the object.

Transistor Fundamentals: Voltage-Divider Biased NPN Transistor

Students view drawings of the dc analysis of a voltage-divider biased NPN transistor.

Voltage Divider Rule (VDR)

By Terry Fleischman, Patrick Hoppe

Students review the Voltage Divider Rule and work practice problems.

Reading Vernier Height Gage Quiz

By Barbara Anderegg

Students take a 13-question quiz to practice reading 25- and 50-division Vernier height gages.

Sine Bar Quiz

In this learning activity you'll calculate sine bar problems.

Transistor DC Analysis Practice Problems: Circuit #1

Learners analyze a base-biased npn transistor circuit. A "help" screen is available.

Inductors

Learners read a description of inductors and view examples of inductors in series and in parallel.

Conductors, Insulators and Resistors

In this animated activity, learners examine why various materials are conductors, insulators, or resistors of current. A short quiz completes the learning object.

Karnaugh Maps

Learners examine the Karnaugh map for a three-variable system. Several examples are given.

Cascading Counters

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

Active Region Operation of a Transistor

Learners view the operation of an NPN transistor in the active region.

Total Resistance in a Parallel Circuit

The learner will apply the three formulas used to find the total resistance of three types of parallel resistor circuit configurations.

The Three-Phase AC Generator

By Terry Fleischman

In this 3D animated object, learners examine the way in which a three-phase generator produces three sine waves with three armature coils. A quiz completes the activity.