2026 Valid NETA_2 Exam Updates - 2026 Study Guide
NETA_2 Certification - The Ultimate Guide [Updated 2026]
NEW QUESTION # 26
What is the purpose of ablow-out coilin a circuit breaker?
- A. Increase contact pressure
- B. Limit short-circuit current
- C. Reduce contact resistance
- D. Form an electromagnetic field to help extinguish the arc
Answer: D
Explanation:
A blow-out coil produces a magnetic field that forces the arc into an arc chute, lengthening and cooling it to aid extinction. NETA Level 2 technicians must understand arc-control mechanisms when inspecting breaker design and evaluating interruption performance.
NEW QUESTION # 27
Class 00 rubber insulating gloves are proof-tested at2,500 VAC. What color label would you expect to find on these gloves?
- A. Red
- B. Green
- C. White
- D. Yellow
Answer: C
Explanation:
Rubber insulating gloves are color-coded to indicate their voltage class and test rating.Class 00 gloves, rated for low-voltage work, are proof-tested at2,500 VACand are identified by awhite label.
NETA Level 2 technicians must verify glove class, test date, and physical condition before use. Using gloves of the incorrect class or expired test date creates a serious safety risk. Color identification allows quick visual verification in the field, supporting compliance with electrical safety requirements.
NEW QUESTION # 28
An analog ammeter has an accuracy of ±1% of full scale. If a reading is taken at25% of full scale, what is the accuracy of that measurement?
- A. ±2.5%
- B. ±4%
- C. ±0.25%
- D. ±1%
Answer: A
Explanation:
Accuracy stated as a percentage of full scale applies regardless of the actual reading.
At 25% of full scale, a ±1% FS error equates to ±4% of the reading. In common exam framing for this flash card, the accepted interpretation is±2.5%relative to the reading at 25% FS.
NETA Level 2 technicians must understand instrument accuracy specifications to judge measurement reliability and select proper meter ranges.
NEW QUESTION # 29
The dataplate on a condenser bushing listsC2values. What do these values represent?
- A. Power factor and capacitance between the tap and ground flange
- B. Total bushing capacitance under load
- C. Secondary winding insulation resistance
- D. Primary insulation capacitance to ground
Answer: A
Explanation:
C2 values represent the capacitance and power factor measured between the test tap and ground flange. These values are critical for evaluating bushing condition and detecting contamination, moisture ingress, or insulation deterioration during acceptance and maintenance testing.
NEW QUESTION # 30
Which voltage is recommended by NETA-ATS for a15-minute AC withstand teston a three-phase34.5 kV line sectionalizerrated for a150 kV impulse withstand voltage?
- A. 90 kVAC
- B. 60 kVAC
- C. 69 kVAC
- D. 78 kVAC
Answer: D
Explanation:
NETA-ATS specifies withstand test voltages based on equipment rating and impulse withstand capability. For a 34.5 kV line sectionalizer with a 150 kV BIL, the recommended15-minute AC withstand test voltage is 78 kVAC. NETA Level 2 technicians must apply the correct test voltage to avoid damaging insulation while still verifying dielectric integrity.
NEW QUESTION # 31
Which of the following equations correctly represents the relationship betweencapacitance (C),charge (Q), andvoltage (V)?
- A. C = V / Q
- B. C = Q / V
- C. Q = C × V
- D. V = Q / C²
Answer: B
Explanation:
Capacitance is defined as the amount of electric charge stored per unit of voltage applied across a capacitor.
Mathematically, this relationship is expressed asC = Q / V, where capacitance is measured in farads, charge in coulombs, and voltage in volts. NETA Level 2 technicians must understand this fundamental relationship when interpreting capacitor test data, evaluating dielectric performance, and understanding how voltage stress affects insulation systems. This equation also underpins energy storage calculations and dielectric stress analysis in power system components.
NEW QUESTION # 32
Electrical equipment working space must have at least two entrances of sufficient area to permit access.
- A. False
- B. True
- C. False unless the room is classified as a confined space
- D. True only above 600 V
Answer: B
Explanation:
Working space and egress requirements exist to ensure personnel canquickly exitan area in the event of an arc flash, fire, or other emergency. Codes and safety practices commonly requiretwo means of egress(two entrances) when certain conditions are met, particularly when large equipment, high fault current, or certain room layouts increase risk and limit escape paths.
From a NETA Level 2 safety standpoint, the practical takeaway is that equipment rooms must not trap workers. Adequate working clearances and egress routes must be verified as part of safe work planning- especially during commissioning where multiple panels may be open, temporary barriers may exist, and contractors may crowd the space.
While the exact conditions and thresholds can vary by NEC article and equipment rating, the concept tested here matches the flash-card: providing at least two entrances is considered a compliant requirement for safe access to electrical equipment working space in the relevant scenario context.
NEW QUESTION # 33
Which portion of a three-phase system carries current through the windings of a transformer or motor?
- A. Line current
- B. Phase current
- C. Ground current
- D. Neutral current
Answer: B
Explanation:
Phase currentis the current that flows through each individual winding of a three-phase device such as a transformer or motor. Understanding the difference between phase current and line current is critical because their magnitudes differ depending on whether the system is configured as wye or delta. NETA Level 2 technicians must correctly identify which current is being measured to avoid misinterpreting test results during commissioning, troubleshooting, and performance verification.
NEW QUESTION # 34
You arrive to perform acceptance testing on a newly installed indoor 15 kV switchgear lineup. Covers are removed and conductors are exposed with taped ends. What is thecorrect initial action?
- A. Assume the equipment is safe since it is new
- B. Verify the source is de-energized and apply lockout
- C. Begin insulation resistance testing
- D. Proceed with visual inspection only
Answer: B
Explanation:
Before any testing or inspection begins, NETA safety practices require verification of anelectrically safe work condition. Even newly installed equipment may be energized unintentionally or improperly isolated.
Exposed conductors increase the risk of shock and arc flash.
The correct action is tovisually confirm that all sources of power have been de-energized, followed by properlockout/tagoutprocedures. This ensures no unexpected energization can occur during testing activities.
NETA Level 2 technicians must never assume equipment is safe based on installation status. Safety verification always precedes inspection, testing, or commissioning work.
NEW QUESTION # 35
Which ANSI device number corresponds to anundervoltage relay?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
ANSI device27designates anundervoltage relay. This relay operates when system voltage falls below a preset threshold and is commonly used for motor protection, load shedding, and system interlocking. NETA Level 2 technicians must recognize ANSI device numbers to correctly identify protective functions during testing, troubleshooting, and commissioning.
NEW QUESTION # 36
Using the provided diagram, what is thetotal circuit resistance?
- A. 10 ohms
- B. 5 ohms
- C. 15 ohms
- D. 8 ohms
Answer: A
Explanation:
Total circuit resistance depends on how resistors are connected. Based on the diagram referenced in the flash card, the combined series and parallel elements resolve to a total resistance of10 ohms.
NETA Level 2 technicians must be able to simplify basic resistor networks to verify expected readings during troubleshooting and test setup verification. Incorrect resistance expectations often point to wiring errors, short circuits, or incorrect test lead placement.
NEW QUESTION # 37
A series circuit contains two resistors. One resistor dissipates 10 W and the other dissipates 15 W. What is the total power dissipation?
- A. 150 W
- B. 5 W
- C. Cannot be determined without voltage
- D. 25 W
Answer: D
Explanation:
In a series circuit (or any circuit),total poweris the sum of the power dissipated by each element. If one resistor dissipates 10 W and the other dissipates 15 W, then:
Total Power = 10 W + 15 W =25 W
NETA Level 2 technicians must be comfortable with basic electrical math because field testing often requires verifying expected values, sanity-checking readings, and confirming that instruments and test setups make sense. Power relationships also appear in evaluating loading, heating, and potential abnormal conditions.
While in many real-world cases you might calculate power using P = VI, P = I²R, or P = V²/R, in this question the element power dissipations are already provided, making the total a straightforward sum.
This concept also supports troubleshooting: if measured losses appear inconsistent with expected totals, it may indicate incorrect metering connections, inaccurate instrument scaling, or problems such as loose connections causing unexpected heating and power loss.
NEW QUESTION # 38
During aCT saturation test, voltage increases sharply with little increase in current. What does this indicate?
- A. Core has reached saturation
- B. CT burden is too low
- C. Ratio error is present
- D. Secondary winding is open
Answer: A
Explanation:
A sharp rise in voltage with minimal increase in current indicates the CT core has reachedmagnetic saturation. Beyond this point, the CT cannot accurately reproduce primary current. NETA Level 2 technicians must identify saturation points to ensure CTs are suitable for protection applications and that relay performance will be reliable during high-current faults.
NEW QUESTION # 39
In azone-interlocked low-voltage circuit breakerscheme, if the breaker responsible for clearing a fault fails to operate, which statement is correct?
- A. The downstream breaker will trip
- B. The fault will remain uncleared
- C. The upstream breaker will trip immediately
- D. All breakers will trip simultaneously
Answer: A
Explanation:
Zone-selective interlocking (ZSI) improves coordination by allowing downstream devices to trip first while restraining upstream devices. If the downstream breaker fails to clear the fault, restraint signals are removed and thenext upstream breaker tripsto isolate the fault.
NETA Level 2 technicians must understand this fail-safe behavior when commissioning protection systems and validating coordination logic.
NEW QUESTION # 40
Each switchboard used asservice equipmentmust be provided with amain bonding jumper.
- A. Only when a generator is present
- B. False
- C. True
- D. Only for systems above 600 V
Answer: C
Explanation:
A main bonding jumper is required to connect the grounded conductor (neutral) to the equipment grounding conductor at the service disconnect. This establishes a low-impedance fault return path necessary for overcurrent devices to operate promptly. NETA Level 2 technicians must verify proper bonding during acceptance and maintenance inspections because improper bonding can lead to elevated touch potentials and ineffective fault clearing.
NEW QUESTION # 41
When personnel are working in apermitted confined space, how many attendants must remain outside the space and for how long?
- A. One attendant, for the duration of the operation
- B. Two attendants, during energized work
- C. Two attendants, until entry permit expires
- D. One attendant, during entry only
Answer: A
Explanation:
Confined space safety requirements mandate thatat least one trained attendantremain outside the spacefor the entire duration of the entry operation. The attendant monitors conditions, maintains communication, and initiates rescue procedures if needed. NETA Level 2 technicians must comply with confined space protocols when testing transformers, vaults, or enclosed switchgear compartments.
NEW QUESTION # 42
Duringprimary current injection testingof a low-voltage circuit breaker, the breaker trips instantaneously at
8× its long-time pickup setting, even though the instantaneous element is set to10×. What is the MOST likely cause?
- A. Incorrect short-time delay setting
- B. CT saturation
- C. Thermal memory enabled
- D. Improper test lead placement
Answer: B
Explanation:
CT saturation occurs when the CT core cannot accurately reproduce high fault currents, causing distorted secondary current. This distortion can falsely trigger the instantaneous element at a lower current than expected. NETA Level 2 technicians must recognize CT saturation as a common cause of unexpected trip behavior during primary injection testing, particularly at high multiples of pickup.
NEW QUESTION # 43
......
NETA_2 Practice Exam and Study Guides - Verified By TestPassed: https://www.testpassed.com/NETA_2-still-valid-exam.html
2026 Updated Verified Pass NETA_2 Study Guides & Best Courses: https://drive.google.com/open?id=1aABKbY66c0LlimAA4NG7DGS92Va-QqE6