NCCER Module 26112-20 (Electrical Test Equipment)
before using a voltage tester, check to make sure it is functioning correctly by -
connecting it to a known energized source
which of the following is true of digital meters? - they are easier to read than analog
meters
a device that be used as a safe known energized source in a live-dead-live test is
known as a - proving unit
if a three-phase motor will not start, which instrument can be used to verify that there is
power available - voltage tester
which meter can measure current without having to make contact with uninsulated
wires? - clamp-on ammeter
most digital ohmmeters have an audible tone to indicate a closed or low-resistance
circuit, making them useful for performing - continuity tests
a device that is plugged directly into an outlet to test the condition of a circuit is - circuit
tester
which of the following devices measures ohms, amps, and volts? - multimeter
what instrument is used to take readings at specified intervals for later review? - data
logger
a meter that can be used to measure solar energy in watts per square meter is a(n) -
irradiance meter
which overvoltage category rating would apply to measurements taken at a service
entrance? - CAT IV
what is the lowest acceptable overvoltage category rating for a voltage tester that will be
used to test electronic equipment and circuitry - CAT I
when a supply circuit is de-energized, the associated circuits - may still be energized
due to backfeeds
certified meters are marked with their category rating on the - meter housing
ANSI requires that field instruments be calibrated at least once per - year
before using a voltage tester, check to make sure it is functioning correctly by -
connecting it to a known energized source
which of the following is true of digital meters? - they are easier to read than analog
meters
a device that be used as a safe known energized source in a live-dead-live test is
known as a - proving unit
if a three-phase motor will not start, which instrument can be used to verify that there is
power available - voltage tester
which meter can measure current without having to make contact with uninsulated
wires? - clamp-on ammeter
most digital ohmmeters have an audible tone to indicate a closed or low-resistance
circuit, making them useful for performing - continuity tests
a device that is plugged directly into an outlet to test the condition of a circuit is - circuit
tester
which of the following devices measures ohms, amps, and volts? - multimeter
what instrument is used to take readings at specified intervals for later review? - data
logger
a meter that can be used to measure solar energy in watts per square meter is a(n) -
irradiance meter
which overvoltage category rating would apply to measurements taken at a service
entrance? - CAT IV
what is the lowest acceptable overvoltage category rating for a voltage tester that will be
used to test electronic equipment and circuitry - CAT I
when a supply circuit is de-energized, the associated circuits - may still be energized
due to backfeeds
certified meters are marked with their category rating on the - meter housing
ANSI requires that field instruments be calibrated at least once per - year
