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NETA NETA_2 Exam Syllabus Topics:

SectionWeightObjectives
Component Testing55%- Electrical Equipment Testing
  • 1. Protective devices and relays overview
    • 2. Cables and insulation diagnostics
      • 3. Circuit breakers testing procedures
        • 4. Transformers insulation resistance testing
          Safety15%- Electrical Safety Fundamentals
          • 1. Arc flash and shock hazard awareness
            • 2. Lockout/Tagout procedures
              • 3. Hazard identification and risk mitigation
                Systems and Commissioning5%- System-Level Testing
                • 1. System verification and documentation
                  • 2. Commissioning procedures
                    Electrical Testing Fundamentals and Theory25%- Measurement Principles
                    • 1. Test data interpretation
                      • 2. Instrumentation usage
                        - Basic Electrical Theory
                        • 1. AC/DC fundamentals
                          • 2. Ohm's law and power relationships

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                            NETA Level 2 Certified Assistant Electrical Testing Specialist Sample Questions (Q75-Q80):

                            NEW QUESTION # 75
                            Secondary injection testing of a low-voltage air circuit breaker is:

                            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 # 76
                            What is theminimum oxygen concentrationallowed before entering a transformer or similar enclosed electrical space?

                            Answer: B

                            Explanation:
                            An oxygen concentration of11.5%represents a dangerous condition that can rapidly impair physical and cognitive function. NETA safety guidance requires oxygen levels to be verified before entry into confined or enclosed spaces such as transformers. Entry below safe oxygen thresholds requires specialized respiratory protection and controls.


                            NEW QUESTION # 77
                            Using a typical breaker control diagram, which coil is most commonly associated with theanti-pump function
                            ?

                            Answer: B

                            Explanation:
                            Theanti-pump relay coilprevents repeated closing attempts if the close command remains energized after a breaker closes and trips. This protects mechanical components and ensures controlled operation. NETA Level
                            2 technicians must verify anti-pump operation during control circuit testing to ensure breakers cannot continuously reclose under fault conditions.


                            NEW QUESTION # 78
                            Which portion of an electrical transmission system experiences faultsmost frequently?

                            Answer: C

                            Explanation:
                            Overhead transmission lines experience the highest frequency of faults due to their direct exposure to environmental conditions. Wind, lightning, ice, vegetation contact, animals, and pollution all contribute to transient and permanent fault conditions on overhead conductors. Unlike underground systems, overhead lines are not shielded from weather-related events.
                            NETA Level 2 technicians must understand fault likelihood when interpreting protective relay operations, breaker trips, and event records. Many relay schemes are designed with reclosing logic specifically because overhead line faults are often temporary. This understanding supports proper commissioning, testing of protective devices, and evaluation of fault-clearing performance.


                            NEW QUESTION # 79
                            A transformer contains insulating fluid with aspecific gravity greater than 1. From where should the oil sample be drawn?

                            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 # 80
                            ......

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