and Answers 2023
Which of the following devices measures ohms, amps, and volts?
Multimeter
Which of the following devices is also called an insulation resistance tester?
Megger
Which instrument should be used to verify that there is power available to run a
three-phase motor that will not start?
Voltage tester
Which meter can measure current without having to make contact with
uninsulated wires?
Clamp-on anmeter
What is the lowest acceptable overvoltage category rating for a tester that will be
used to test electronic equipment and circuitry?
CAT I
Another name for a VOM is a(n)_____.
multimeter
What is the lowest acceptable overvoltage category rating for a multimeter that
will be used to test small appliance?
CAT II
Which of the following is true of digital meters?
They are easier to read than analog meters.
Certified meters are marked as to their category rating on the_____.
meter housing
Most digital ohmeters have an audible tone to indicate a closed or low-resistance
circuit, making them useful for performing_____.
Continuity tests
What is the lowest acceptable overvoltage category rating for an ammeter that
will be used to test industrial lighting and outdoor conductors?
CAT IV
Before using a voltage tester, check to make sure it is functioning correctly by
_______.
connecting it to a known energized source
The typical applied megohmmeter voltage in 600V class systems is _______.
500 to 1,000V
What instrument is used to take readings at specified intervals for later review?
Data logger
Which of the following are used with ammeters to increase their range for current
measurement?
Shunt resistors