Students view the formula for determining twist drill speeds in metal. Exercises complete the activity.
This document is a visual and text description of using tapers with a taper attachment on a lathe.
This video clip shows facing on an engine lathe.
This text document lists 27 safety items to consider in a machine shop.
This document gives the student a text and graphic overview of screw threads and fasteners.
This review assesses the student's ability to understand screw threads and fasteners.
This document gives the student a text and photo overview of feed rate calculations.
In this document you'll review text and photos of the radial drilling machines.
This review tests the student's knowledge of cutting speeds and RPM calculations for drilling machines.
In this interactive object, the learner reads an explanation of how various shielding gases are used in GMAW and FCAW. An exercise completes the activity.
Students view a video that shows the correct methods for starting a GTAW weld pool and adding filler. It focuses on the two problems that many students have – adding filler too soon and angling the torch so that the filler melts prematurely on the filler rod. Note: This activity is 3.6 mb.
Learners reflect on their own attitudes toward change and list them in the order they might experience them. In a separate exercise, they prioritize the actions a group might take when faced with change in the workplace.
Instructions on how to interpret state indicator symbols for input and output terminals of digital devices is presented.
Students observe the operation of a tri-state buffer used in digital electronics. A brief quiz completes the activity.
Students view the layout and operation of a digital logic probe.
Learners view an animated demonstration of how to determine the final output of the combinational circuit.
Students view schematics and truth tables that demonstrate how the AND, OR, and Hex Inverter functions are achieved through the use of only NAND gates.
Learners read an explanation of how to troubleshoot a faulty digital-to-analog converter that has a shorted input.
In this learning activity you'll explore how an Exclusive-OR gate operates by using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.
Learners read how to calculate the MOD number and how it is used.
Learners examine how to multiply the gate propagation delay by the gate power dissipation to find the speed-power product. Examples are shown.
Students look at the power dissipated by a single gate and by an IC. The concept of average current draw is introduced and examples are provided.
Learners read the characteristics of the TTL series. Examples are given and subfamilies are compared.
In this animated object, learners examine the recommended procedure for troubleshooting a defective JK flip-flop using a logic pulser and probe.
Learners examine the fundamentals of a pulse train. Concepts such as time on, time off, duty cycle, period, and frequency are covered.