NCCER ELECTRICAL LEVEL 1 -Module 12
Electrical Test Equipment Questions & Answers
A voltmeter is used to measure the value of a circuit's ____. Correct Ans-Electromotive force
A closed circuit is indicated by an ohmmeter reading of ______. Correct Ans-Zero
A meter that operates by sensing the strength of the electromagnetic field around the wire is a(n)
______. Correct Ans-Clamp-on ammeter
Current measurement in milliamps are typically read using a(n) _____. Correct Ans-VOM
An expected resistance of 1,000,000 ohms would be measured using a ______. Correct Ans-
Megohmmeter
Which category rating covers installation that present the lowest risk? Correct Ans-CAT I
Which of the following is true with regard to meter safety? Correct Ans-Thoroughly inspect
all test equipment before each use.
CAT I (Overvoltage Category) Correct Ans-Electronic equipment and circuitry
, CAT II (Overvoltage Category) Correct Ans-Single-phase loads such as small appliance tools,
outlets at more than 30 feet from a CAT III source or 60 feet from a CAT IV source
CAT III (Overvoltage Category) Correct Ans-Three-phase motors, single-phase commercial
or industrial lighting, switchgear, busduct and feeders in industrial plants.
CAT IV (Overvoltage Category) Correct Ans-Three-phase power at meter, service-entrance,
or utility connection, any outdoor conductors, including signs, a pump, or exterior power
generation (solar, wind, etc.).
Which of the following is true regarding analog meters? Correct Ans-Analog meters rely on a
moving-coil meter movement.
A voltmeter is used to test _____. Correct Ans-Exact voltages
In order to ensure safety, before measuring low voltages, you should first test for _____.
Correct Ans-Higher voltages
An ammeter is used to measure ____. Correct Ans-Current
Clamp-on ammeters operate by _______. Correct Ans-Sensing the strength of the
electromagnetic field around the wire
A meter with applied voltages of 500v or 1,000v is a(n) _____. Correct Ans-Megohmmeter
Electrical Test Equipment Questions & Answers
A voltmeter is used to measure the value of a circuit's ____. Correct Ans-Electromotive force
A closed circuit is indicated by an ohmmeter reading of ______. Correct Ans-Zero
A meter that operates by sensing the strength of the electromagnetic field around the wire is a(n)
______. Correct Ans-Clamp-on ammeter
Current measurement in milliamps are typically read using a(n) _____. Correct Ans-VOM
An expected resistance of 1,000,000 ohms would be measured using a ______. Correct Ans-
Megohmmeter
Which category rating covers installation that present the lowest risk? Correct Ans-CAT I
Which of the following is true with regard to meter safety? Correct Ans-Thoroughly inspect
all test equipment before each use.
CAT I (Overvoltage Category) Correct Ans-Electronic equipment and circuitry
, CAT II (Overvoltage Category) Correct Ans-Single-phase loads such as small appliance tools,
outlets at more than 30 feet from a CAT III source or 60 feet from a CAT IV source
CAT III (Overvoltage Category) Correct Ans-Three-phase motors, single-phase commercial
or industrial lighting, switchgear, busduct and feeders in industrial plants.
CAT IV (Overvoltage Category) Correct Ans-Three-phase power at meter, service-entrance,
or utility connection, any outdoor conductors, including signs, a pump, or exterior power
generation (solar, wind, etc.).
Which of the following is true regarding analog meters? Correct Ans-Analog meters rely on a
moving-coil meter movement.
A voltmeter is used to test _____. Correct Ans-Exact voltages
In order to ensure safety, before measuring low voltages, you should first test for _____.
Correct Ans-Higher voltages
An ammeter is used to measure ____. Correct Ans-Current
Clamp-on ammeters operate by _______. Correct Ans-Sensing the strength of the
electromagnetic field around the wire
A meter with applied voltages of 500v or 1,000v is a(n) _____. Correct Ans-Megohmmeter
