NETA 3 EXAM 2025/2026 QUESTIONS 1
AND ANSWERS 100% PASS
Insulator thickness for high voltage power lines should be based on ______ voltage -
ANS Peak
Maximum acceptable ASTM D974 on new transformer oil is ______ - ANS .015
Minimum IR for 480 gen with random wound stator coils manuf in 1995 - ANS 5 megohms
Bimetallic strips in thermal relays have two metal strips with a different - ANS Coefficient of
expansion
AC dielectric withstand Maintenance of 5 kV dry transformer should not exceed _____% of
factory voltage for one minute - ANS 65
Lead acid storage batteries do Not include which hazard? - ANS High voltage arcing
High resistance connections in DC armatures are best identified by - ANS Trending
Air terminals for lightning protection that exceed 24" shall be supported at not less than _____
their height - ANS 1/2
Most low voltage circuit breaker manufacturers recommend that contacts touch within _____"
of each other - ANS 1/8
pg. 1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Circular mil area = - ANS D squared
What would cause low specific gravity in a battery - ANS Low charge voltage
D1816 1mm gap - ANS 34kV
Locked rotor kva - ANS HP x max code value
Locked rotor current - ANS Locked rotor kVA/(1.732 x kV)
A moving iron meter operates by applying ____ current to the coil - ANS AC
Arcing fault relative to bolted fault is _____% - ANS 80
a . b= - ANS |a| x |b| x cosine theta
Which test is an acceptable alternative to PF on transformer bushings? - ANS NBDFR
The easiest method for determining contact sequence on a low voltage cb is - ANS Light
circuit
Trip current supervision is a metering parameter of an IED True or False - ANS False
IEC61850 has roots in RTU while DNP3 has roots in LAN/WAN true or false - ANS False
The generally accepted deviation from nominal 60hz is _____hz - ANS .5
pg. 2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
AND ANSWERS 100% PASS
Insulator thickness for high voltage power lines should be based on ______ voltage -
ANS Peak
Maximum acceptable ASTM D974 on new transformer oil is ______ - ANS .015
Minimum IR for 480 gen with random wound stator coils manuf in 1995 - ANS 5 megohms
Bimetallic strips in thermal relays have two metal strips with a different - ANS Coefficient of
expansion
AC dielectric withstand Maintenance of 5 kV dry transformer should not exceed _____% of
factory voltage for one minute - ANS 65
Lead acid storage batteries do Not include which hazard? - ANS High voltage arcing
High resistance connections in DC armatures are best identified by - ANS Trending
Air terminals for lightning protection that exceed 24" shall be supported at not less than _____
their height - ANS 1/2
Most low voltage circuit breaker manufacturers recommend that contacts touch within _____"
of each other - ANS 1/8
pg. 1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Circular mil area = - ANS D squared
What would cause low specific gravity in a battery - ANS Low charge voltage
D1816 1mm gap - ANS 34kV
Locked rotor kva - ANS HP x max code value
Locked rotor current - ANS Locked rotor kVA/(1.732 x kV)
A moving iron meter operates by applying ____ current to the coil - ANS AC
Arcing fault relative to bolted fault is _____% - ANS 80
a . b= - ANS |a| x |b| x cosine theta
Which test is an acceptable alternative to PF on transformer bushings? - ANS NBDFR
The easiest method for determining contact sequence on a low voltage cb is - ANS Light
circuit
Trip current supervision is a metering parameter of an IED True or False - ANS False
IEC61850 has roots in RTU while DNP3 has roots in LAN/WAN true or false - ANS False
The generally accepted deviation from nominal 60hz is _____hz - ANS .5
pg. 2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
