NCCER ELECTRICAL LEVEL 1 -MODULE
12 ELECTRICAL TEST EQUIPMENT
QUESTIONS WITH VERIFIED ANSWERS
A voltmeter is used to measure the value of a circuit's ____. - Answer-Electromotive
force
A closed circuit is indicated by an ohmmeter reading of ______. - Answer-Zero
A meter that operates by sensing the strength of the electromagnetic field around the
wire is a(n) ______. - Answer-Clamp-on ammeter
Current measurement in milliamps are typically read using a(n) _____. - Answer-VOM
An expected resistance of 1,000,000 ohms would be measured using a ______. -
Answer-Megohmmeter
Which category rating covers installation that present the lowest risk? - Answer-CAT I
Which of the following is true with regard to meter safety? - Answer-Thoroughly inspect
all test equipment before each use.
CAT I (Overvoltage Category) - Answer-Electronic equipment and circuitry
CAT II (Overvoltage Category) - Answer-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) - Answer-Three-phase motors, single-phase commercial
or industrial lighting, switchgear, busduct and feeders in industrial plants.
CAT IV (Overvoltage Category) - Answer-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? - Answer-Analog meters rely on
a moving-coil meter movement.
A voltmeter is used to test _____. - Answer-Exact voltages
In order to ensure safety, before measuring low voltages, you should first test for _____.
- Answer-Higher voltages
An ammeter is used to measure ____. - Answer-Current
12 ELECTRICAL TEST EQUIPMENT
QUESTIONS WITH VERIFIED ANSWERS
A voltmeter is used to measure the value of a circuit's ____. - Answer-Electromotive
force
A closed circuit is indicated by an ohmmeter reading of ______. - Answer-Zero
A meter that operates by sensing the strength of the electromagnetic field around the
wire is a(n) ______. - Answer-Clamp-on ammeter
Current measurement in milliamps are typically read using a(n) _____. - Answer-VOM
An expected resistance of 1,000,000 ohms would be measured using a ______. -
Answer-Megohmmeter
Which category rating covers installation that present the lowest risk? - Answer-CAT I
Which of the following is true with regard to meter safety? - Answer-Thoroughly inspect
all test equipment before each use.
CAT I (Overvoltage Category) - Answer-Electronic equipment and circuitry
CAT II (Overvoltage Category) - Answer-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) - Answer-Three-phase motors, single-phase commercial
or industrial lighting, switchgear, busduct and feeders in industrial plants.
CAT IV (Overvoltage Category) - Answer-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? - Answer-Analog meters rely on
a moving-coil meter movement.
A voltmeter is used to test _____. - Answer-Exact voltages
In order to ensure safety, before measuring low voltages, you should first test for _____.
- Answer-Higher voltages
An ammeter is used to measure ____. - Answer-Current
