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NETA 3 questions with correct answers
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NETA 3 questions with correct answers
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NETA 3 questions with correct answersInsulator thickness for high voltage power lines should be based on ______ voltage - ANSWER: ➡ Peak
k k k k k k k k k k k k k k kk k
Maximum acceptable ASTM D974 on new transformer oil is ______ - ANSWER: ➡ .015
k k k k k k k k k k k kk k
Minimum IR for 480 gen with random wound stator coils manuf in 1995 - ANSWER: ➡ 5 megohms
k k k k k k k k k k k k k k kk k k
Bimetallic strips in thermal relays have two metal strips with a different - ANSWER: ➡ Coefficient of
k k k k k k k k k k k k k kk k k
expansion
k
AC dielectric withstand Maintenance of 5 kV dry transformer should not exceed _____% of factory
k k k k k k k k k k k k k k
voltage for one minute - ANSWER: ➡ 65
k k k k k k kk k
Lead acid storage batteries do Not include which hazard? - ANSWER: ➡ High voltage arcing
k k k k k k k k k k kk k k k
High resistance connections in DC armatures are best identified by - ANSWER: ➡ Trending
k k k k k k k k k k k kk k
Air terminals for lightning protection that exceed 24" shall be supported at not less than _____ their
k k k k k k k k k k k k k k k k
height - ANSWER: ➡ 1/2
k k k kk k
Most low voltage circuit breaker manufacturers recommend that contacts touch within _____" of each
k k k k k k k k k k k k k
other - ANSWER: ➡ 1/8
k k k kk k
Circular mil area = - ANSWER: ➡ D squared
k k k k k kk k k
What would cause low specific gravity in a battery - ANSWER: ➡ Low charge voltage
k k k k k k k k k k kk k k k
D1816 1mm gap - ANSWER: ➡ 34kV
k k k k kk k
, Locked rotor kva - ANSWER: ➡ HP x max code value
k k k k kk k k k k k
Locked rotor current - ANSWER: ➡ Locked rotor kVA/(1.732 x kV)
k k k k kk k k k k k
A moving iron meter operates by applying ____ current to the coil - ANSWER: ➡ AC
k k k k k k k k k k k k k kk k
Arcing fault relative to bolted fault is _____% - ANSWER: ➡ 80
k k k k k k k k k kk k
a . b= - ANSWER: ➡ |a| x |b| x cosine theta
k k k k kk k k k k k k
Which test is an acceptable alternative to PF on transformer bushings? - ANSWER: ➡ NBDFR
k k k k k k k k k k k k kk k
The easiest method for determining contact sequence on a low voltage cb is - ANSWER: ➡ Light circuit
k k k k k k k k k k k k k k kk k k
Trip current supervision is a metering parameter of an IED True or False - ANSWER: ➡ False
k k k k k k k k k k k k k k kk k
IEC61850 has roots in RTU while DNP3 has roots in LAN/WAN true or false - ANSWER: ➡ False
k k k k k k k k k k k k k k k kk k
The generally accepted deviation from nominal 60hz is _____hz - ANSWER: ➡ .5
k k k k k k k k k k kk k
A ______requires very little energy to be activated - ANSWER: ➡ Shunt reactor
k k k k k k k k k kk k k
In a wye connected system without neutral grounding, zero sequence currents are - ANSWER: ➡ Zero
k k k k k k k k k k k k k kk k
True/false: Fuse resistance is a required maintenance test for low voltage starters with fused
k k k k k k k k k k k k k
protection - ANSWER: ➡ False
k k k kk k
Resistance grounding is used for voltages - ANSWER: ➡ 3.3kV-11kV
k k k k k k k kk k
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