WorksheetsNCCER Practice Exam PT 12
Total questions: 10
Worksheet time: 5mins
A motor rotation meter _____.
tests an energized motor
works only in a clockwise turn
is used to find the motor legs
is used to identify phases of the circuit
The IEC developed a safety standard for overvoltage installation categories of CAT I, CAT II, CAT III, and CAT IV for _____.
electrical equipment
wiring
test equipment
signaling circuits
To ensure safety, before measuring low voltages, you should first test for _____.
resistance
current
vibration
higher voltages
An insulation resistance tester is another name for a(n) _____.
megohmmeter
multimeter
continuity tester
ammeter
The highest level of protection from transient voltage is provided by instruments rated as _____.
CAT I
CAT IV
CAT III
CAT II
A voltmeter is used to test _____.
sine waves
power
voltage ranges
exact voltages
Clamp-on ammeters work by ____.
using D'Arsonval meter movement
measuring the high resistance end of a power transformer
detecting the strength of the electromagnetic field around the conductor
using a resistive shunt
What is the lowest acceptable category rating for a multimeter that will be used to test small appliances?
CAT II
CAT I
CAT IV
CAT III
An ammeter is used to measure ____.
current
voltage
insulation value
resistance
Which of the following is true about analog meters?
Analog meters have an autoranging setting.
Analog meters use a moving-coil meter movement.
Analog meters are solid-state instruments.
Analog meters have a digital readout.
