NETA III EXAM, MOST RECENT EXAM 2026 ACTUAL
COMPLETE REAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED
A+ | NEWEST EXAM | JUST RELEASED!!
What is the minimum acceptable test limit for an ASTM D877
test on mineral
oil used in new 69kV equipment? -
ANSWER-30kV
What is the NETA Minimum DC Test Voltage for an Insulation-
Resistance test
on a 5kV liquid-filled transformer winding? -
ANSWER-2500
One advantage DC type motors have over AC types is that: -
ANSWER-their
speed can be easily
varied
Grounding conductors and bonding jumpers shall not be
installed in the same
raceway containing service conductors per NEC. -
ANSWER-False
,Which test is required for insulating liquid taken from an in-
service HV OCB
per NETA standards? - ANSWER-
ASTM D877
In which protection scheme does the magnitude and phase
angle of the current flowing at each end of the line determine
whether an internal fault exists. - ANSWER-Pilot-Wire
What is the expected Maximum Trip Time (in Seconds) for a
480V, 100A molded-case circuit breaker inverse time test at
300% of Rated Continuous
Current? - ANSWER-160
The minimum allowable work space around electrical
equipment is _____
inches wide. -
ANSWER-30
Where raceways contain insulated circuit conductors _____
and larger, the conductors shall be protected from abrasion
during and after installation by an identified fitting providing a
smoothly rounded insulating surface. - ANSWER-4
AWG
The power factor of new mineral oil at 100C for equipment
rated 69kV and
,below should be _____ % or less. -
ANSWER-0.40
Power fuse resistance readings on a MV Switch deviate by than
30%. What is
the NETA recommendation? -
ANSWER-Inspect
The Angle of Zone of protection of a lightning
protection system is
approximately: - ANSWER-45
degrees
Concrete-Encased Grounding Electrodes are often referred to
as: - ANSWER-
Ufer
Ground
You are asked to analyze a thermographic image of a single
insulated electrical connection under 60% load, the ambient
temperature recorded was 72°F and temperature points on the
image indicate a temperature of 112°F at the connection in
question, what would be the appropriate action level? -
ANSWER-Monitor until corrected
Point-to-point resistance values on new grounding systems in
a generating station that exceed ___ should be investigated. -
ANSWER-500 milliohms
, What is the Limited Approach Boundary for a 4160V
switchgear? - ANSWER-
60
inches
When ________ switchboard metering is used, power is still
applied to the utility meter after the service main has been
switched off. - ANSWER-hot sequence
What is the minimum acceptable test limit for an ASTM D1816
(2mm gap) test
on mineral oil used in new 69kV equipment? -
ANSWER-55kV
A new 69kV-35kV power transformer filled with FR3 is being
placed into service, what is the minimum acceptable dielectric
breakdown voltage for a
transformer of this voltage class when tested in accordance
with ASTM D1816
(2mm gap)? - ANSWER-50kV
Total Harmonic Distortion (THD) is defined as the ratio
of the Actual
Fundamental to RMS harmonic content. -
ANSWER-False
What is the insulation-resistance acceptance test duration
of a 250HP AC
COMPLETE REAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED
A+ | NEWEST EXAM | JUST RELEASED!!
What is the minimum acceptable test limit for an ASTM D877
test on mineral
oil used in new 69kV equipment? -
ANSWER-30kV
What is the NETA Minimum DC Test Voltage for an Insulation-
Resistance test
on a 5kV liquid-filled transformer winding? -
ANSWER-2500
One advantage DC type motors have over AC types is that: -
ANSWER-their
speed can be easily
varied
Grounding conductors and bonding jumpers shall not be
installed in the same
raceway containing service conductors per NEC. -
ANSWER-False
,Which test is required for insulating liquid taken from an in-
service HV OCB
per NETA standards? - ANSWER-
ASTM D877
In which protection scheme does the magnitude and phase
angle of the current flowing at each end of the line determine
whether an internal fault exists. - ANSWER-Pilot-Wire
What is the expected Maximum Trip Time (in Seconds) for a
480V, 100A molded-case circuit breaker inverse time test at
300% of Rated Continuous
Current? - ANSWER-160
The minimum allowable work space around electrical
equipment is _____
inches wide. -
ANSWER-30
Where raceways contain insulated circuit conductors _____
and larger, the conductors shall be protected from abrasion
during and after installation by an identified fitting providing a
smoothly rounded insulating surface. - ANSWER-4
AWG
The power factor of new mineral oil at 100C for equipment
rated 69kV and
,below should be _____ % or less. -
ANSWER-0.40
Power fuse resistance readings on a MV Switch deviate by than
30%. What is
the NETA recommendation? -
ANSWER-Inspect
The Angle of Zone of protection of a lightning
protection system is
approximately: - ANSWER-45
degrees
Concrete-Encased Grounding Electrodes are often referred to
as: - ANSWER-
Ufer
Ground
You are asked to analyze a thermographic image of a single
insulated electrical connection under 60% load, the ambient
temperature recorded was 72°F and temperature points on the
image indicate a temperature of 112°F at the connection in
question, what would be the appropriate action level? -
ANSWER-Monitor until corrected
Point-to-point resistance values on new grounding systems in
a generating station that exceed ___ should be investigated. -
ANSWER-500 milliohms
, What is the Limited Approach Boundary for a 4160V
switchgear? - ANSWER-
60
inches
When ________ switchboard metering is used, power is still
applied to the utility meter after the service main has been
switched off. - ANSWER-hot sequence
What is the minimum acceptable test limit for an ASTM D1816
(2mm gap) test
on mineral oil used in new 69kV equipment? -
ANSWER-55kV
A new 69kV-35kV power transformer filled with FR3 is being
placed into service, what is the minimum acceptable dielectric
breakdown voltage for a
transformer of this voltage class when tested in accordance
with ASTM D1816
(2mm gap)? - ANSWER-50kV
Total Harmonic Distortion (THD) is defined as the ratio
of the Actual
Fundamental to RMS harmonic content. -
ANSWER-False
What is the insulation-resistance acceptance test duration
of a 250HP AC
