What does VOM stand for?

What does VOM stand for?

• A. Volt-Ohm Meter.
• B. Voice Over Modem.
• C. Video Over Monitor.
• D. Version Of Module.

Answer: (A)

A volt-Ohm meter is a hand-held instrument used to measure electrical voltage and resistance in a circuit. The volt portion checks potential difference between two points, the ohm portion checks resistance, and the meter shows the reading. In alarm system work, you’ll use one to verify that power supplies and sensors are delivering the correct voltage, test wiring continuity, and identify opens or shorts. The term VOM comes from volt-Ohm meter, a traditional name for this kind of tester. The other phrases listed don’t describe a measurement tool at all, so they aren’t relevant here.

A volt-Ohm meter is a hand-held instrument used to measure electrical voltage and resistance in a circuit. The volt portion checks potential difference between two points, the ohm portion checks resistance, and the meter shows the reading. In alarm system work, you’ll use one to verify that power supplies and sensors are delivering the correct voltage, test wiring continuity, and identify opens or shorts. The term VOM comes from volt-Ohm meter, a traditional name for this kind of tester. The other phrases listed don’t describe a measurement tool at all, so they aren’t relevant here.