Exam CTS Topic 3 Question 62 Discussion

Actual exam question for AVIXA's CTS exam
Question #: 62
Topic #: 3
Which setting on the digital multimeter should be used to determine if a DC power supply has failed?
Select the correct measurement category by clicking anywhere within the measurement range.

Suggested Answer:


Explanation:
The correct setting is the section marked with "V#" (DC Voltage), specifically within the range that matches your expected DC power supply output, e.g., 20V under the "V#" section.
According to the AVIXA CTS Exam Guide, Chapter 6: Troubleshooting, checking if a DC power supply has failed requires measuring the DC output voltage. This involves setting your multimeter to the DC voltage (V#) range that covers the expected output.
From the guide:
"When testing a DC power source, use the DC voltage range on your digital multimeter. Begin with a higher range (e.g., 200V) to avoid damaging the meter, then narrow down for precision if needed." Avoid using resistance (#), AC voltage (V~), or current (A) ranges when checking voltage output.

by Jared at Aug 04, 2026, 02:01 AM

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