Nccer Electrical Level 1 -Module 12
Electrical Test Equipment Questions
And Answers With Verified Solutions
Already Passed!!!
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
Clamp-on ammeters operate by _______. - ANSWER✔✔Sensing the strength of
the electromagnetic field around the wire
A meter with applied voltages of 500v or 1,000v is a(n) _____. -
ANSWER✔✔Megohmmeter
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