Electrical Test Equipment Quiz

Which instrument should be used to verify that there is power available to run a three-phase motor that will not start?

Voltage tester

Certified meters are marked as to their category rating on the _____.

meter housing

Another name for a VOM is a(n) _____.

multimeter

The typical applied megohmmeter voltage in 600V class systems is _____.

500 to 1,000V

What is the lowest acceptable overvoltage category rating for a voltage tester that will be used to test electronic equipment and circuitry?

CAT I

What is the lowest acceptable overvoltage category rating for a multimeter that will be used to test small appliances?

CAT II

What is the lowest acceptable overvoltage category rating for an ammeter that will be used to test industrial lighting and outdoor conductors?

CAT IV

Which meter can measure current without having to make contact with uninsulated wires?

Clamp-on ammeter

What instrument is used to take readings at specified intervals for later review?

Data logger

Which of the following devices is also called an insulation resistance tester?

Megger^®

Which of the following are used with ammeters to increase their range for current measurement?

Shunt resistors

Which of the following is true of digital meters?

They are easier to read than analog meters.

Before using a voltage tester, check to make sure it is functioning correctly by _____.

connecting it to a known energized source

Most digital ohmmeters have an audible tone to indicate a closed or low-resistance circuit, making them useful for performing _____.

continuity