The digital voltmeter is the best basic tool for electrical troubleshooting, because it's calibrated and exact. But remember, the digital voltmeter can't detect a high-resistance fault if the circuit ...

These video training kits are designed for service managers who want to facilitate in-house training sessions on HVACR equipment servicing, and for HVACR instructors in secondary or post-secondary ...

From the earliest days in vehicle history, electrical energy has been used for powertrain, lighting, and a multitude of accessories. Today, modern vehicles use multiple microprocessors onboard and all ...

When something goes wrong with a car's electrical system, it can be so frustrating and infuriating to diagnose that we sometimes just throw up our hands and blame the gremlins lurking in those ...

The day will come when trucks no longer have hood latches. Where the latch was will be a sticker that says, “Do not open. No user-serviceable parts inside.” Until then, we will still have electrical ...

Let’s face it: Diagnosing electric problems is a pain, to say the least. You can get far with a test light and your trusty digital multimeter, but you still might end up just throwing parts at the ...

Class A motorhomes and smaller campers typically run on both AC and DC power. The former is your electrical hookup at the campground. It runs the energy-demanding thing like your air conditioner, ...

In this educational film, Mr. Grant explains the basics of electricity to Frank and Joan while repairing Joan's flashlight. He demonstrates how a broken wire prevents electricity from flowing, leading ...

“Yes, nothing gets the taste of shame and humiliation out of your mouth quite like a piece of Be-Bop-A-Re-Bop Rhubarb Pie.” “Yes, nothing gets the taste of shame and humiliation out of your mouth ...

You work in a large manufacturing facility that has grown over time. The plant air system has grown along with it so that it now has six different air compressors of varying sizes and manufacture.

You were recently hired on as the electrical engineer and electrical services manager for a small company that has its offices and manufacturing on the same site. Eric, the personnel manager, is also ...