Recreational Vehicle (RV) Technician Practice Test

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Prepare for the RV Technician Test with our quiz. Utilize flashcards and multiple-choice questions, complete with hints and explanations. Achieve success in your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

When removing a battery from a vehicle, which lead should be disconnected first for safety?

Positive lead
Negative lead
Both leads simultaneously
Ground lead

The correct answer is: Negative lead

When removing a battery from a vehicle, it is important to disconnect the negative lead first for safety reasons. The negative lead is typically connected to the vehicle's chassis and serves as the ground. By disconnecting it first, you eliminate the risk of creating a short circuit if your tool accidentally touches any part of the vehicle that is connected to the positive terminal. If the positive lead were disconnected first, and a tool inadvertently connected the positive terminal to the vehicle body while still connected to the negative terminal, it could cause a spark, leading to potential battery damage or even an explosion. Therefore, the practice of removing the negative lead first establishes a safer procedure, minimizing the chance of accidental short circuits during the process.