The 4-Input Truth Table

By Patrick Hoppe

In this learning activity you'll practice using the 4-input truth table.

Print Reading: An Alphabet of Lines in Print Reading

By Kelly Curran

In this animated activity, learners read about the types of lines found on blueprints. A quiz completes the activity.

Calculating Lengths for Tube Bending

By Dave Hoffman

The learner reads an explanation of how to determine lengths for tubing and pipe bending and then performs calculations in an interactive exercise. Two methods for determining angle bends are shown. A calculator is required.

Diode Approximations

This learning object introduces the three approximations of a diode.

Hydraulic Schematic Symbol Flashcards

By John Rosz

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

Cascading Timers

By Terry Bartelt

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

A Drill for Converting Binary Numbers to Decimal Numbers

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

The Elementary AC Generator

Learners view animations showing the operation of the internal parts of an AC generator. A short quiz completes the activity.

Waveforms of a Triac Circuit

Learners observe the waveforms in a circuit in which a triac controls the brightness of a lampâ€™s light. A brief quiz completes the activity.

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.

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.

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.

Calculating Horsepower, RPM, and Torque

By James Bourassa, John Rosz

In this animated and interactive object, learners examine the formula for horsepower and work practice problems.

Op Amps 2: The Non-Inverting Amplifier

By Todd Van De Hey

The learner will describe the non-inverting op-amp configuration and calculate the circuit gain.

Single-Phase Motors: Introduction to Phase-Splitting

By Terry Bartelt, Terry Fleischman

Learners will understand how the interaction of the armature magnetic field and the rotating stator field cause the rotor of a single-phase AC motor to turn.

Voltages Across Series and Parallel Capacitive Circuits

In this interactive and animated object, learners examine how dc voltages develop across capacitors that are connected in series and in parallel.

AND Gates

In this learning activity you'll describe the operation of an AND gate by using a truth table, a waveform diagram, a Boolean Algebra equation, a switch analogy, and a written definition.

Transistor Fundamentals: Voltage-Divider Biased NPN Transistor

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

Reading a Micrometer

By Sue Silverstein

In this learning activity you'll practice reading a micrometer.

Boolean Theorems (Single Variable)

Students analyze the eight single variable Boolean theorems and their expressions.

Determining Punch & Dies for Press Brake Forming

Introduction to selecting the proper punch and die for air bending or bottoming when forming on a press brake. Includes charts and methods for selection.

Armature Action of AC Motors

In this animated object, learners study the rotation of the magnetic stator field of an AC motor and how it interacts with the armature to cause rotation. A short quiz completes the activity.

A Timer-Off Application

Learners examine how a PLC Timer-Off instruction is used in the operation of an automotive paint booth.

Waveforms of an SCR Circuit

Learners view waveforms at various locations of an SCR circuit controlling the intensity a light bulb. The waveforms are shown when the light is dim, at medium brightness, and at full brightness. A brief quiz completes the activity.

The 555 Astable Multivibrator

Learners observe the animated operation of an astable mulivibrator using a 555 IC (integrated circuit) chip and external components.