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NETA NETA_2 Exam Syllabus Topics:

SectionWeightObjectives
Component Testing20-25%- Transformers Testing
  • 1. Turns Ratio Tests
  • 2. Excitation Current Tests
  • 3. Winding Resistance Tests
- Protective Devices Testing
  • 1. Coordination Studies
  • 2. Overcurrent Relay Tests
- Conductors and Cables Testing
  • 1. Continuity Tests
  • 2. Insulation Resistance Tests
  • 3. Hi-Pot Tests
- Switchgear Testing
  • 1. Dielectric Withstand Tests
  • 2. Circuit Breaker Timing Tests
  • 3. Contact Resistance Tests
Testing Equipment and Instrumentation20-25%- Grounding and Bonding Testers
  • 1. Earth Resistance Testers
  • 2. Ground Bond Testers
- Circuit Breaker Testers
  • 1. Secondary Injection Test Sets
  • 2. Primary Injection Test Sets
- Voltmeters and Ammeters
  • 1. Clamp Meters
  • 2. Digital Multimeters
- Relay Testing Equipment
  • 1. Protective Relay Testers
- Insulation Testing Equipment
  • 1. Hipot Testers
  • 2. Insulation Resistance Analyzers
  • 3. Megohmmeters
Testing Procedures and Standards25-30%- NETA Maintenance Testing Specifications
  • 1. Acceptance Testing Standards
  • 2. Visual Inspection Procedures
  • 3. Electrical Testing Procedures
- NFPA 70E Electrical Safety
  • 1. energized Work Permits
  • 2. Arc Flash Hazard Analysis
- IEEE Testing Standards
  • 1. IEEE 62.45 Low-Voltage Testing
  • 2. IEEE 4 High-Voltage Testing
Documentation and Reporting10-15%- Reports and Certification
  • 1. NRTL Certification Requirements
  • 2. Test Report Writing
- Test Documentation
  • 1. Data Recording Procedures
  • 2. Test Results Interpretation
Electrical Theory and Fundamentals15-20%- Electrical Safety Principles
  • 1. Arc Flash Safety
  • 2. Personal Protective Equipment
  • 3. Lockout/Tagout Procedures
- AC/DC Circuit Analysis
  • 1. Kirchhoff's Laws
  • 2. Ohm's Law and Power Calculations
  • 3. Series and Parallel Circuits
  • 4. Three-Phase Systems

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NETA Level 2 Certified Assistant Electrical Testing Specialist Sample Questions (Q41-Q46):

NEW QUESTION # 41
A ground conductor is routed through azero-sequence current transformer (CT)together with the phase conductors feeding the load. What is the most likely result?

Answer: C

Explanation:
Zero-sequence (residual) ground-fault detection works by measuring thevector sum of currentspassing through a CT window. Under normal conditions, the three phase currents sum to approximately zero. If a ground fault occurs, the return current path bypasses the CT window, producing a net residual current that the CT detects.
If theequipment grounding conductor(or neutral/ground return conductor, depending on the scheme) is incorrectly passed through the same CT window along with the phase conductors, the ground-fault return current can be "captured" by the CT. This causes the residual sum to approachzero, even during an actual ground fault-meaning the protective function mayfail to operate.
NETA Level 2 technicians are expected to recognize correct CT installation practices, especially during commissioning and acceptance testing of ground-fault protection schemes. This includes verifying CT polarity, conductor routing, window CT content, and proper secondary wiring before performing injection or functional trip tests. Misrouting conductors is a classic cause of non-operational ground-fault protection.


NEW QUESTION # 42
Power factor is defined as:

Answer: B

Explanation:
Power factor is the ratio ofreal power (watts)toapparent power (volt-amperes). This ratio indicates how effectively electrical power is being converted into useful work. NETA Level 2 technicians must understand power factor when evaluating system efficiency, loading, and the impact of reactive components.


NEW QUESTION # 43
For aDielectric Absorption Ratio (DAR)test on a transformer, the 1-minute insulation resistance value is divided by the value obtained at:

Answer: C

Explanation:
The Dielectric Absorption Ratio (DAR) is defined as:
DAR = IR at 60 seconds ÷ IR at 30 seconds
This test evaluates insulation quality by observing how resistance increases as polarization effects develop.
NETA Level 2 technicians use DAR testing as a quick diagnostic tool, particularly when full polarization index (PI) testing is not practical.


NEW QUESTION # 44
A piece of wire that is0.001 inchesin diameter and12 incheslong is defined as onemil-foot.

Answer: D

Explanation:
Amilis one-thousandth of an inch (0.001 in). Amil-footis a reference unit used in conductor resistance calculations. It describes a conductor that is1 mil in diameter and 1 foot long. Since 12 inches equals 1 foot, the statement is correct.
This unit supports standardized resistance formulas such as:
R = (K × L) / CM
where R is resistance, K is the resistivity constant, L is length, and CM is circular mil area. While technicians in the field often rely on tables and software, NETA Level 2 fundamentals include understanding what these units represent so results and conductor resistance expectations can be sanity-checked.
This concept also appears when evaluating long cable runs, verifying conductor sizing, or interpreting low- resistance measurements where expected values are small and sensitive to length and cross-sectional area.


NEW QUESTION # 45
A transformer contains insulating fluid with aspecific gravity greater than 1. From where should the oil sample be drawn?

Answer: C

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 # 46
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