NETA level 2 NETA Level II Exam Questions
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Terms in this set (236)
What type of trip device is Answer: Capactive
commonly used to trip (CTD) a Capacitive Trip Device is a device that
open a medium-voltage provides a DC source of energy for circuit breaker
circuit breaker where a tripping or closing when normal power is lost.
battery source is not
available?
a) Capacitive
b) Series
c) Shunt
d) Parallel
Shielded Power Cable Answer: include stress relief at termination and splices
Must IEEE STD 48 8.1c
a) Include stress relief at
termination and splices.
b) Have a PVC jacket and
Tape Shield
c) Be tested using only a
DC test set
d) Be no longer than
1000ft.
,What type of 138kV, gang Answer: Motor controlled
operated, air break switch
can be remotely
operated?
a) Pneumatic
b) Motor controlled
c) Bolted pressure
d) Stored energy
A confined space is Answer: Below 19.5% or above 23.5%
considered to have a OSHA 1910.146 (3) pg. 463
"hazardous atmosphere" if
the oxygen concentration
is?
a) Below 13.5% or above
18.5%
b) Below 19.5% or above
23.5%
c) Below 49.5% or above
73.5%
d) Below 79.5% or above
93.5%
On an Automatic Transfer Answer: 10 seconds
Switch (ATS) NFPA 99 NFPA 99 6.7.5.3.1
requires a transfer time to
emergency power on the
life safety and critical
branches in no more than?
a) 3 seconds
b) 5 seconds
c) 10 seconds
d) 15 seconds
,Insulating Liquid and Correct Answer: 0.30
Gases Help: NETA ATS-2021 Table 100.4.1
The power factor of new
mineral oil at 100C for
230kV rated equipment
should be _____ % or less.
Emergency Systems Correct Answer: Open the inverter input breaker
DC Undervoltage Help: NETA ATS-2021 Section 7.22.2.D.4
protection for a UPS
should:
Safety Correct Answer: 36 inches
A given battery bank Help: NFPA 70E-2018 Table 130.7(C)(15)(b)
feeding a 240V UPS
system has an available
fault current of 1600A and
an arc duration of 1.8
seconds. According to
NFPA 70E, which of the
following would be
considered an acceptable
Arc-Flash Boundary for
this equipment?
Harmonics Correct Answer: 150A
In order to correct the Help: ((kVAR x 1000) / (1.732 x V)) x 1.35
power factor, a three- NFPA 70-2017 Article 460.8(A)
phase, 480 volt, 92 kVAR
capacitor bank located 6
feet from the main service
of a 3200 square foot
office building has a
minimum required ampere
rating for the conductors
in the capacitor bank of:
, Transformers Correct Answer: 2500
What is the NETA Minimum Help: NETA Table 100.5 (2019)
DC Test Voltage for an
Insulation-Resistance test
on a 5kV liquid-filled
transformer winding?
Rotating Machinery Correct Answer: PF Correction
What is the benefit of a Help: Synchronous Motor - Construction, Principle,
synchronous motor? Types, Characteristics
Electrical Calculations Correct Answer: -1/2
Calculate (sin 30° - sin0°) / Help: ( () - 0 ) / (0 - )
(cos90° - cos60°).
Fundamentals and Theory Correct Answer: Test duration
One major limitation of the Help: Making the right choice for low resistance
ultra-capacitor based
microhmeter is:
Switchgear and Correct Answer: False
Switchboard Assemblies Help: NETA MTS-2023 Table 100.2
The equipment
manufacturer should be
contacted for
recommendations before
applying dc withstand
maintenance tests to
metal-clad switchgear
rated above 5kV.
True or False
Circuit Breakers Correct Answer: 6000A
Article 240.6 of the NEC Help: NFPA 70-2017 Table 240.6(A)
lists standard ampere
rating for fuses and
inverse time circuit
breakers. What is the
largest rating listed?
Correctly Answered
Save
Terms in this set (236)
What type of trip device is Answer: Capactive
commonly used to trip (CTD) a Capacitive Trip Device is a device that
open a medium-voltage provides a DC source of energy for circuit breaker
circuit breaker where a tripping or closing when normal power is lost.
battery source is not
available?
a) Capacitive
b) Series
c) Shunt
d) Parallel
Shielded Power Cable Answer: include stress relief at termination and splices
Must IEEE STD 48 8.1c
a) Include stress relief at
termination and splices.
b) Have a PVC jacket and
Tape Shield
c) Be tested using only a
DC test set
d) Be no longer than
1000ft.
,What type of 138kV, gang Answer: Motor controlled
operated, air break switch
can be remotely
operated?
a) Pneumatic
b) Motor controlled
c) Bolted pressure
d) Stored energy
A confined space is Answer: Below 19.5% or above 23.5%
considered to have a OSHA 1910.146 (3) pg. 463
"hazardous atmosphere" if
the oxygen concentration
is?
a) Below 13.5% or above
18.5%
b) Below 19.5% or above
23.5%
c) Below 49.5% or above
73.5%
d) Below 79.5% or above
93.5%
On an Automatic Transfer Answer: 10 seconds
Switch (ATS) NFPA 99 NFPA 99 6.7.5.3.1
requires a transfer time to
emergency power on the
life safety and critical
branches in no more than?
a) 3 seconds
b) 5 seconds
c) 10 seconds
d) 15 seconds
,Insulating Liquid and Correct Answer: 0.30
Gases Help: NETA ATS-2021 Table 100.4.1
The power factor of new
mineral oil at 100C for
230kV rated equipment
should be _____ % or less.
Emergency Systems Correct Answer: Open the inverter input breaker
DC Undervoltage Help: NETA ATS-2021 Section 7.22.2.D.4
protection for a UPS
should:
Safety Correct Answer: 36 inches
A given battery bank Help: NFPA 70E-2018 Table 130.7(C)(15)(b)
feeding a 240V UPS
system has an available
fault current of 1600A and
an arc duration of 1.8
seconds. According to
NFPA 70E, which of the
following would be
considered an acceptable
Arc-Flash Boundary for
this equipment?
Harmonics Correct Answer: 150A
In order to correct the Help: ((kVAR x 1000) / (1.732 x V)) x 1.35
power factor, a three- NFPA 70-2017 Article 460.8(A)
phase, 480 volt, 92 kVAR
capacitor bank located 6
feet from the main service
of a 3200 square foot
office building has a
minimum required ampere
rating for the conductors
in the capacitor bank of:
, Transformers Correct Answer: 2500
What is the NETA Minimum Help: NETA Table 100.5 (2019)
DC Test Voltage for an
Insulation-Resistance test
on a 5kV liquid-filled
transformer winding?
Rotating Machinery Correct Answer: PF Correction
What is the benefit of a Help: Synchronous Motor - Construction, Principle,
synchronous motor? Types, Characteristics
Electrical Calculations Correct Answer: -1/2
Calculate (sin 30° - sin0°) / Help: ( () - 0 ) / (0 - )
(cos90° - cos60°).
Fundamentals and Theory Correct Answer: Test duration
One major limitation of the Help: Making the right choice for low resistance
ultra-capacitor based
microhmeter is:
Switchgear and Correct Answer: False
Switchboard Assemblies Help: NETA MTS-2023 Table 100.2
The equipment
manufacturer should be
contacted for
recommendations before
applying dc withstand
maintenance tests to
metal-clad switchgear
rated above 5kV.
True or False
Circuit Breakers Correct Answer: 6000A
Article 240.6 of the NEC Help: NFPA 70-2017 Table 240.6(A)
lists standard ampere
rating for fuses and
inverse time circuit
breakers. What is the
largest rating listed?
