Indirect Measurement Instruments

By Kelly Curran

The learner will define indirect measurement, identify common indirect measuring tools, and select the proper measuring tool for the situation.

The Dial Caliper

By Barbara Anderegg

Learners review guidelines for the proper use of a dial caliper. Illustrations appear throughout the learning object.

Synchronous & Asynchronous Inputs on a JK Flip-Flop

By Patrick Hoppe

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

Reading Vernier Height Gage Quiz

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.

Logic Symbols

By Terry Bartelt

The schematic symbols of logic gates used in digital circuits are shown.

Karnaugh Maps

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

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.

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.

How to Read a Caliper

In this interactive object, learners review how to read a caliper. They then test their skills with eight practice questions.

The 4-Input Truth Table

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

How Small Is a Millionth of an Inch?

In this learning activity you'll determine the measurement to be made and the accuracy required.

Print Reading: An Alphabet of Lines in Print Reading

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

The Welder's Tool Bag

By lloyd

In this learning object, youâ€™ll explore what tools should be a part of every welding tool bag.

Boolean Theorems (Single Variable)

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

Hexadecimal Number Conversion Practice Problems

In this learning activity you'll practice converting between hexadecimal and decimal and between hexadecimal and binary numbers.

Calculating Blank Size for Rolled Sheet Metal

By Dave Hoffman

In this interactive object, students read how to calculate the blank size for cylinders in a three-roll pinch roller. A calculator is required for the brief quiz that completes the activity.

Calculating Lengths for Tube Bending

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.

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.

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.

Demultiplexers

In this animated object, learners examine the operation of a demultiplexer along with the data output and select lines. A brief quiz completes the activity.

Pulse Train Fundamentals: Practice Problem #1

In this interactive object, learners determine the pulse width, period, duty cycle, and frequency of a waveform.

Logic State Indicators

Instructions on how to interpret state indicator symbols for input and output terminals of digital devices is presented.

Sine Bar

In this learning activity you'll examine how a sine bar is used to measure angles.

Reading a Micrometer

By Sue Silverstein

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