JJJJJJJJJJJ
2024 Update /NETA Level /exam
Ltest /COMPLETE FREQUENTLY
MOST TESTED QUESTION WITH
VERIFIED AND GRADEDED A+
/GET IT 100% ACCURATE
Use of the manufacturer's test kit or
rewiring the neutral CT input is the pre-
ferred method of primary-injection test-
What is the preferred method of perform- ing on a low voltage circuit breaker with
ing primary-injection testing on a low ground fault protection, otherwise two
voltage circuit breaker with ground fault poles can be connected in series to pro-
protection? vide balanced secondary currents to the
trip unit.
-60 to 100mA in AC systems
At what current level does ventricular fib- -300 to 500mA in DC systems
rillation occur?
For a 70kg body
75mA DC
What is the LET-GO current threshold? 15mA AC
Meter Sockets and meter disconnect FALSE
switches should be connected on the (NEC Article 230.82)
load side of a service disconnecting
means.
Which standard addresses equipment NFPA 70 (National Electric Code)
grounding?
A moving iron meter operates by apply- Operating current ( can be AC or DC)
ing current to the coil.
What is the maximum deviation between 50% of the lowest value
resistance measurements on bolted con- (MTS 7.20.3.1)
nections?
Identify the electrical symbol shown:
,JJJJJJJJJJJ
Removable / Drawout circuit breaker
Normally 5kV or above
6.6kV and greater
Resistance grounding is used for volt-
ages:
, JJJJJJJJJJJ
Blowout coils may be used to extinguish
the arc by means of a magnetic blast.
The arc created when the contacts open
is subjected to the action of a magnetic
field set up by coils connected in series
Medium-voltage motor starters use
with the circuit being interrupted.
blowout coils. What do these do?
These coils are called blowout coils be-
cause they help blow out the arc magnet-
ically. The arc is magnetically blown into
arc chutes where the arc is lengthened,
cooled, and extinguished.
Puffer tubes incorporate the operating
mechanism to blow a puff of air through a
Medium voltage air circuit breakers use tube and nozzle to each contact assem-
PUFFER TUBES. What do these do? bly when the breaker is opened. The air
helps quench the arc by pushing it up into
the arc-chute.
Identify the electrical symbol shown:
Ammeter
No lines on head
SAE grade 1 & 2 Bolt
Tensile strength 64KSI
3 lines on head
SAE grade 5 Bolt
Tensile strength 105 KSI
5 lines on head
SAE grade 7 Bolt
Tensile strength 133 KSI
6 lines on head
SAE grade 8 Bolt
Tensile strength 150 KSI
2024 Update /NETA Level /exam
Ltest /COMPLETE FREQUENTLY
MOST TESTED QUESTION WITH
VERIFIED AND GRADEDED A+
/GET IT 100% ACCURATE
Use of the manufacturer's test kit or
rewiring the neutral CT input is the pre-
ferred method of primary-injection test-
What is the preferred method of perform- ing on a low voltage circuit breaker with
ing primary-injection testing on a low ground fault protection, otherwise two
voltage circuit breaker with ground fault poles can be connected in series to pro-
protection? vide balanced secondary currents to the
trip unit.
-60 to 100mA in AC systems
At what current level does ventricular fib- -300 to 500mA in DC systems
rillation occur?
For a 70kg body
75mA DC
What is the LET-GO current threshold? 15mA AC
Meter Sockets and meter disconnect FALSE
switches should be connected on the (NEC Article 230.82)
load side of a service disconnecting
means.
Which standard addresses equipment NFPA 70 (National Electric Code)
grounding?
A moving iron meter operates by apply- Operating current ( can be AC or DC)
ing current to the coil.
What is the maximum deviation between 50% of the lowest value
resistance measurements on bolted con- (MTS 7.20.3.1)
nections?
Identify the electrical symbol shown:
,JJJJJJJJJJJ
Removable / Drawout circuit breaker
Normally 5kV or above
6.6kV and greater
Resistance grounding is used for volt-
ages:
, JJJJJJJJJJJ
Blowout coils may be used to extinguish
the arc by means of a magnetic blast.
The arc created when the contacts open
is subjected to the action of a magnetic
field set up by coils connected in series
Medium-voltage motor starters use
with the circuit being interrupted.
blowout coils. What do these do?
These coils are called blowout coils be-
cause they help blow out the arc magnet-
ically. The arc is magnetically blown into
arc chutes where the arc is lengthened,
cooled, and extinguished.
Puffer tubes incorporate the operating
mechanism to blow a puff of air through a
Medium voltage air circuit breakers use tube and nozzle to each contact assem-
PUFFER TUBES. What do these do? bly when the breaker is opened. The air
helps quench the arc by pushing it up into
the arc-chute.
Identify the electrical symbol shown:
Ammeter
No lines on head
SAE grade 1 & 2 Bolt
Tensile strength 64KSI
3 lines on head
SAE grade 5 Bolt
Tensile strength 105 KSI
5 lines on head
SAE grade 7 Bolt
Tensile strength 133 KSI
6 lines on head
SAE grade 8 Bolt
Tensile strength 150 KSI
