TEST INSTRUMENTS EXAM QUESTIONS WITH
VERIFIED ANSWERS | LATEST UPDATE .
nonlinear Scale - correct Answers -A scale that is divided into unequally spaced segments.
capacitance measurement mode - correct Answers -A DMM mode used to measure capacitance or test
the condition of a capacitor.
diode test mode - correct Answers -A DMM mode used to test the condition of a diode.
decibel scale - correct Answers -A scale that indicates the comparison (ratio) between two or more
signal powers or voltages.
DC voltage - correct Answers -Voltage in a circuit that has current that flows in one direction only.
abbreviation - correct Answers -A letter or combination of letters that represents a word.
resistance (R) - correct Answers -The opposition to the flow of electrons in a circuit.
multifunction test instrument (multimeter) - correct Answers -A device that is capable of measuring two
or more electrical properties.
clamp-on ammeter - correct Answers -A test instrument that measures current in a circuit by measuring
the strength of the magnetic field around a single conductor.
receptacle tester - correct Answers -A device that is plugged into a standard receptacle to determine if
the receptacle is properly wired and energized.
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, analog display - correct Answers -An electromechanical device that indicates readings by the mechanical
motion of a pointer.
current unbalance (imbalance) - correct Answers -The unbalance that occurs when current on each of
the three power lines of a three-phase power supply to a 3-phase motor or to other 3-phase loads is not
equal.
circuit analyzer - correct Answers -A receptacle plug and meter that determines circuit wiring faults
(reverse polarity or open ground), tests for proper operation of GFCIs and arc fault breakers (AFCIs), and
displays important circuit measurements (hot/neutral/ground voltages, impedance, and line frequency).
test instrument - correct Answers -A device used to measure electrical properties such as voltage,
current, resistance, frequency, power, and conductivity.
relative mode (REL) - correct Answers -A DMM mode that records a measurement and displays the
difference between that reading and subsequent measurements.
voltage tester - correct Answers -An electrical test instrument that indicates the approximate voltage
amount and type of voltage (AC or DC) in a circuit by the movement of a pointer (and vibration on some
models).
secondary division - correct Answers -A division of an analog scale that divides primary divisions into
halves, thirds, fourths, fifths, etc.
megohmeter - correct Answers -A high-resistance ohmmeter used to measure insulation deterioration
on various wires by measuring high resistance values during high voltage test conditions.
ammeter - correct Answers -A test instrument that measures the amount of current in an electrical
circuit.
multimeter - correct Answers -A portable test instrument that is capable of measuring two or more
electrical properties.
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VERIFIED ANSWERS | LATEST UPDATE .
nonlinear Scale - correct Answers -A scale that is divided into unequally spaced segments.
capacitance measurement mode - correct Answers -A DMM mode used to measure capacitance or test
the condition of a capacitor.
diode test mode - correct Answers -A DMM mode used to test the condition of a diode.
decibel scale - correct Answers -A scale that indicates the comparison (ratio) between two or more
signal powers or voltages.
DC voltage - correct Answers -Voltage in a circuit that has current that flows in one direction only.
abbreviation - correct Answers -A letter or combination of letters that represents a word.
resistance (R) - correct Answers -The opposition to the flow of electrons in a circuit.
multifunction test instrument (multimeter) - correct Answers -A device that is capable of measuring two
or more electrical properties.
clamp-on ammeter - correct Answers -A test instrument that measures current in a circuit by measuring
the strength of the magnetic field around a single conductor.
receptacle tester - correct Answers -A device that is plugged into a standard receptacle to determine if
the receptacle is properly wired and energized.
1
, analog display - correct Answers -An electromechanical device that indicates readings by the mechanical
motion of a pointer.
current unbalance (imbalance) - correct Answers -The unbalance that occurs when current on each of
the three power lines of a three-phase power supply to a 3-phase motor or to other 3-phase loads is not
equal.
circuit analyzer - correct Answers -A receptacle plug and meter that determines circuit wiring faults
(reverse polarity or open ground), tests for proper operation of GFCIs and arc fault breakers (AFCIs), and
displays important circuit measurements (hot/neutral/ground voltages, impedance, and line frequency).
test instrument - correct Answers -A device used to measure electrical properties such as voltage,
current, resistance, frequency, power, and conductivity.
relative mode (REL) - correct Answers -A DMM mode that records a measurement and displays the
difference between that reading and subsequent measurements.
voltage tester - correct Answers -An electrical test instrument that indicates the approximate voltage
amount and type of voltage (AC or DC) in a circuit by the movement of a pointer (and vibration on some
models).
secondary division - correct Answers -A division of an analog scale that divides primary divisions into
halves, thirds, fourths, fifths, etc.
megohmeter - correct Answers -A high-resistance ohmmeter used to measure insulation deterioration
on various wires by measuring high resistance values during high voltage test conditions.
ammeter - correct Answers -A test instrument that measures the amount of current in an electrical
circuit.
multimeter - correct Answers -A portable test instrument that is capable of measuring two or more
electrical properties.
2
