ASVAB Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare effectively for the ASVAB exam with our comprehensive quiz. Engage with multiple-choice questions and detailed explanations designed to enhance your understanding and boost your confidence. Get ready to achieve your career aspirations!

Practice this question and more.

When measuring resistance with an ohmmeter, what should you ensure?

Connect the power
Disconnect the power
Keep the circuit open
Use a high range setting

The correct answer is: Disconnect the power

When measuring resistance with an ohmmeter, you should always ensure that the power is disconnected. This is because adding power to the circuit can change the resistance and affect the accuracy of the measurement. Additionally, keeping the circuit open (choice C) will not allow for a complete measurement and using a high range setting (choice D) can cause inaccurate readings.