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Boost Isn’t New! A History of Turbocharged Cars

It seems every automaker has jumped on the forced induction bandwagon over the last decade. While some say there is no replacement for displacement, a turbocharged engine makes a pretty good argument to the contrary. Turbocharging is hardly new, though. You can read...

Two Common Oil Change Mistakes That Techs Can Make (VIDEO)

Description Too many technicians make these simple mistakes while performing oil changes for customers. Dorman Training Center instructor Pete Meier points out a pair of errors that can turn easy jobs into big headaches.  Related Videos

Fundamental Electrical Knowledge – ASE Practice Question (VIDEO)

Description Technician A and Technician B are discussing electrical fundamentals. Which of the following statements is INCORRECT?A) All electrical circuits are made up of a load, a source, a control, a circuit protection device and a path that connects them all.B)...

Is an Appointment-Only Shop Schedule Wise or Madness?

You probably have an “Open” sign hanging in the shop window or door. But what if you didn’t? Could you—and your shop—function as a shop without regular hours? The answer, like so many things in life, isn’t completely binary. Before we begin, maybe it makes sense to...

What does dark brake fluid really mean? (VIDEO)

Description Don’t just rely on brake fluid color to determine its condition. Dorman Training Center instructor Pete Meier demonstrates how to use a quick DVOM test for a more precise brake fluid condition check.Related Videos

Beware the SAE Lead

The SAE connector is instantly recognizable to many technicians. Commonly found on electrical junctions that need the ability to be disconnected often but ought not be reversed, the plug seems like it should be a no-brainer—however, it’s anything but. If the picture...

DSO Settings – ASE Practice Question (VIDEO)

Description Technician A says that when using a lab scope, most signals can be captured using the 20/20 Rule - that is, by setting up the scope to capture a range of 0-20v on the vertical scale and setting the time base to 20ms per division. Technician B says that a...

Testing Battery State of Charge – ASE Practice Question (VIDEO)

by | Oct 7, 2025

Description

Technician A and Technician B are discussing battery testing. Technician A says that an open circuit voltage of less than 10.5 volts indicates a bad battery. Technician B says that a reading of 12.5 volts indicates an 80% state of charge.

Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

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