Basic Types of Dimensioning Used in Engineering Drawings

By Kelly Curran, Glenn Sokolowski

Learners examine the basic types of dimensioning including unidirectional and aligned systems, and linear, aligned, angled, arrowless, chain, datum, chart, tabular, radius, diameter, typical, and reference dimensions.

Orthographic Projection #1

By Glenn Sokolowski

In this interactive and animated object, learners examine orthographic projection and the Glass Box Theory. Front, side, and top view development is demonstrated with pictorial views of each object to help develop 2D to 3D visualization skills.

Digital Terrain Model (DTM): Determining Contour Location

By Steve Whitmoyer

Learners read how to determine the location of a contour for a specific location given a TIN.

The Superposition Theorem

By Patrick Hoppe

The superposition theorem is explained as it relates to dc circuit analysis. Examples are given.

Parallel Circuit Analysis Practice Problems: Circuit #5

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.

Calculating DC Values of a Transistor Amplifier

By Terry Bartelt

In this animated activity, learners view the seven steps that are used to calculate voltage and current values throughout a common-emitter transistor amplifier.

Ground Fault Circuit Interrupters

In this animated activity, learners examine how ground fault circuit interrupters work and why they are an important safety feature.

AC Capacitor: A Water Tank Analogy

By Roger Brown

In this animated lesson, students read an analogy comparing water in a "special" water tank to the current "flow" through a capacitor.

Series-Parallel DC Circuits Analysis

Learners follow a methodical approach for the dc analysis of series-parallel circuits.

The Edison Wire System

Learners read a description of the wiring configuration of a residential Edison Wire System, which consists of a transformer secondary circuit. The circuit supplies two 115-volt sources and one 230-volt source.

P&ID Tag Numbers

Learners study the types of information letters and numbers placed inside general piping and instrumentation diagram symbols.

Series-Parallel Circuit Analysis Practice Problems: Circuit #5

Learners examine a series-parallel circuit and solve 14 problems related to voltage, current, and power. A help screen is provided.

Hydraulic Systems

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.

The Triac

Learners study the fundamental operation of a triac, particularly how it is turned on and off. A brief quiz completes the activity.

Hydraulic System Pressure

In this animated activity, learners observe how pressure values throughout a hydraulic system are developed based on pump pressure and the size of the load.

Abbreviations Representing Electrical Quantities

In this learning activity you'll identify abbreviations that represent quantities associated with electrical circuits.

The Magnetron Ignition System

Learners read an explanation of how the Magnetron Ignition System uses a solid state switching component, a step-up transformer, and magnetism to provide a high voltage spark in a one-cylinder combustion engine.

Series Circuit Analysis Practice Problems Part 1

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.

Thevenin Voltage: Practice Problems

Students work five practice problems to determine the Thevenin voltage of DC circuits.

Designing a Ladder Diagram

In this animated object, learners examine the design of a ladder circuit that provides manual control to a water pumping system. Students also study modifications to the circuit as the complexity of the system increases.

Basic Elements of Dimensions Used in Engineering Drawings

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

Transfer Functions: The RC High Pass Filter

Learners read how the transfer function for a RC high pass filter is developed. The transfer function is used in Excel to graph the Vout. The circuit is also simulated in Electronic WorkBench and the resulting Bode plot is compared to the graph from Excel.

What Is Torque?

Learners read a description of torque and study the factors that cause its magnitude to change. A brief quiz completes the activity.

Norton's Theorem

Learners follow the steps for reducing all of the elements of a complex circuit to a single current source and a single source resistance to create a simple circuit. Several examples are given for dc circuits. The conversion between Thevenin and Norton is also presented.

The Spring-and-Diaphragm Actuator

Learners study an animation of a spring-and diaphragm actuator controlling the opening of a flow valve.