Free 365 Days Exam Updates NETA_2 dumps with test Engine Practice
Updated Verified NETA_2 dumps Q&As - 100% Pass Guaranteed
NEW QUESTION # 45
Polarization Index (PI) is defined as the ratio of insulation resistance measured at:
- A. 10 minutes to 1 minute
- B. 1 minute to 30 seconds
- C. 5 minutes to 1 minute
- D. 15 minutes to 5 minutes
Answer: A
Explanation:
Polarization Index evaluates insulation quality over time and is calculated as:
PI = IR at 10 minutes ÷ IR at 1 minute.
NETA Level 2 technicians use PI testing to assess insulation dryness, cleanliness, and aging.
NEW QUESTION # 46
A series circuit contains two resistors. One resistor dissipates 10 W and the other dissipates 15 W. What is the total power dissipation?
- A. Cannot be determined without voltage
- B. 5 W
- C. 25 W
- D. 150 W
Answer: C
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 # 47
When applying personal protective grounds, which connection must be madefirst?
- A. Ground source end
- B. Phase conductor end
- C. Equipment end
- D. Neutral conductor end
Answer: C
Explanation:
The correct application of personal protective grounds is critical to worker safety and is strongly emphasized in NETA safety practices. When installing grounds, theequipment end must be attached first, ensuring the grounding conductor is securely bonded to earth or an effective ground source before any connection is made to energized or potentially energized conductors.
This sequence minimizes the risk of electric shock. If the phase conductor were connected first and the grounding system was not yet established, the worker could become the path to ground in the event of accidental energization. Once the equipment end is secured, phase conductors can be safely grounded.
When removing grounds, the reverse order is required: phase conductors are disconnected first, and the equipment end is removed last. NETA Level 2 technicians must follow this sequence consistently during maintenance, testing, and commissioning activities to ensure compliance with safety standards and prevent serious injury.
NEW QUESTION # 48
Thebreaking capacityof a circuit breaker is typically expressed in:
- A. Amperes
- B. Ohms
- C. Volts
- D. Watts
Answer: A
Explanation:
Breaking capacity refers to the maximumfault currenta circuit breaker can safely interrupt and is expressed in amperes(often kA). NETA Level 2 technicians must verify breaker ratings during acceptance testing to ensure suitability for the available short-circuit current at the installation location.
NEW QUESTION # 49
Transformer oil samples drawn when the oil temperature isbelow 32°F (0°C)may:
- A. Always indicate excessive moisture
- B. Not reveal free water
- C. Show artificially high dielectric strength
- D. Be invalid for testing
Answer: B
Explanation:
At low temperatures, free water can solidify and remain suspended, preventing accurate detection. NETA Level 2 technicians must consider temperature effects when interpreting oil analysis results.
NEW QUESTION # 50
Which section of a switchboard receives power from theservice sectionand distributes it to downstream loads?
- A. Distribution section
- B. Control section
- C. Metering section
- D. Transfer section
Answer: A
Explanation:
The distribution section of a switchboard receives incoming power from the service section and feeds branch circuits, feeders, or downstream panels. During commissioning, NETA Level 2 technicians verify continuity, torque, insulation, and protective coordination within the distribution section to ensure reliable power delivery and safe operation.
NEW QUESTION # 51
To reverse the direction of rotation of a three-phase induction motor, which action is required?
- A. Reverse the control circuit polarity
- B. Reverse all three phase conductors
- C. Reverse any two phase conductors
- D. Reverse the neutral conductor
Answer: C
Explanation:
The direction of rotation of a three-phase motor is determined by thephase sequenceof the supply voltage.
Reversingany two phase conductorschanges the phase sequence, which reverses the rotating magnetic field in the stator and therefore reverses motor rotation.
NETA Level 2 technicians frequently verify motor rotation during commissioning and after maintenance.
Understanding phase rotation is essential when performing bump tests, troubleshooting incorrect rotation, or verifying wiring after motor replacement. Reversing all three phases would preserve the original phase sequence and would not change rotation.
NEW QUESTION # 52
During aCT saturation test, voltage increases sharply with little increase in current. What does this indicate?
- A. CT burden is too low
- B. Core has reached saturation
- C. Ratio error is present
- D. Secondary winding is open
Answer: B
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 # 53
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. ±4%
- B. ±1%
- C. ±2.5%
- D. ±0.25%
Answer: C
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 # 54
How many connection points are typically found on a Kelvin bridge used for low-resistance measurements?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
A Kelvin bridge, also known as a four-wire resistance measurement device, usesfour connection pointsto accurately measure very low resistances. These consist of twocurrent terminalsand twopotential (voltage) terminals.
This configuration eliminates the effects of lead resistance and contact resistance, which can significantly distort measurements when testing bolted connections, bus joints, and grounding conductors. NETA Level 2 technicians routinely use Kelvin methods when performing low-resistance ohmic measurements during acceptance and maintenance testing.
Using fewer than four terminals would result in inaccurate readings, especially at milliohm or micro-ohm levels. Understanding this principle ensures proper test setup and reliable data interpretation.
NEW QUESTION # 55
During avacuum circuit breaker bottle integrity test, which hazardous energy may be produced?
- A. Ultraviolet radiation
- B. Gamma radiation
- C. X-rays
- D. Infrared radiation
Answer: C
Explanation:
High-voltage vacuum integrity tests can generateX-raysdue to electron acceleration within the vacuum bottle.
NETA safety practices require distance, shielding, and time limitations during testing. Level 2 technicians must recognize non-obvious hazards associated with electrical testing, especially during high-voltage applications.
NEW QUESTION # 56
A transformer contains insulating fluid with aspecific gravity greater than 1. From where should the oil sample be drawn?
- A. From the bottom of the tank
- B. From the middle of the tank
- C. From the conservator
- D. From the top of the tank
Answer: D
Explanation:
Specific gravity greater than 1 means the insulating fluid isheavier than water. Any free water contamination will settlebelowthe oil. To avoid collecting settled contaminants and to obtain a representative oil sample, NETA practice requires sampling from thetop of the tank.
Correct sampling technique is critical for accurate dielectric, moisture, and dissolved gas analysis results.
NETA Level 2 technicians must understand fluid properties to avoid misleading test conclusions.
NEW QUESTION # 57
On a circuit breaker equipped with a solid-stateLSIGtrip unit, what does the"I"represent?
- A. Interrupting rating
- B. Inverse-time
- C. Instantaneous
- D. Insulation
Answer: C
Explanation:
LSIG stands for Long-time, Short-time, Instantaneous, and Ground-fault protection. TheInstantaneous element provides rapid tripping with no intentional delay for high-magnitude faults. NETA Level 2 technicians must understand trip unit elements when performing injection testing and verifying protective coordination.
NEW QUESTION # 58
Using the provided diagram, what is thetotal circuit resistance?
- A. 10 ohms
- B. 15 ohms
- C. 8 ohms
- D. 5 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 # 59
Secondary injection testing of a low-voltage air circuit breaker is:
- A. Not permitted by NETA standards
- B. More comprehensive than primary injection testing
- C. Equivalent to primary injection testing for acceptance
- D. Less comprehensive than primary injection testing
Answer: D
Explanation:
Secondary injection testing verifies the operation of thetrip unit electronics, but it does not test the entire current path, sensors, or mechanical trip linkage under load conditions. Primary injection testing is more comprehensive because it verifies the breaker's response to actual current flowing through the primary circuit.
NETA Level 2 technicians must understand the limitations of secondary injection and when primary injection is required for acceptance testing.
NEW QUESTION # 60
When may anunqualified personenter theLimited Approach Boundary?
- A. Never
- B. When wearing rubber insulating gloves
- C. When escorted by a qualified person
- D. When the voltage is below 600 V
Answer: A
Explanation:
The Limited Approach Boundary defines the minimum distance from exposed energized parts that unqualified persons arenever permitted to cross. Entry into this space is restricted to qualified persons who understand the hazards and are trained to apply proper protective measures.
NETA safety objectives emphasize that escorting, PPE, or voltage level does not override qualification requirements. Only qualified individuals with appropriate training and authorization may enter the Limited Approach Boundary. This rule is foundational to preventing shock injuries and is strictly enforced during testing, inspection, and commissioning activities.
NEW QUESTION # 61
When reinstalling a draw-out circuit breaker into a metal-clad switchgear cubicle, in what condition must the breaker be?
- A. Open and racked in
- B. Closed and racked in
- C. Closed and racked out
- D. Open and racked out
Answer: D
Explanation:
For safety and mechanical integrity, circuit breakers must beopen and racked outbefore installation or removal from cubicles. NETA Level 2 technicians must follow correct breaker handling procedures to prevent arc flash, equipment damage, and mechanical interlock failures during commissioning and maintenance.
NEW QUESTION # 62
......
Provide Valid Dumps To Help You Prepare For NETA Level 2 Certified Assistant Electrical Testing Specialist Exam: https://www.exam4labs.com/NETA_2-practice-torrent.html
NETA_2 Dumps Questions [2026] Pass for Exam: https://drive.google.com/open?id=1KXo4xhl4WMB3D4TVGaNcUjkX5TV1woyq