NETA_2최신업데이트시험대비자료최신시험대비자료

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NETA NETA_2 Exam Syllabus Topics:

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

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                            최신 NETA CAETS NETA_2 무료샘플문제 (Q21-Q26):

                            질문 # 21
                            What is the primary advantage ofaluminum bus barcompared to copper?

                            정답：D

                            설명：
                            Aluminum bus bar is widely used due to itslower costand lighter weight compared to copper. While copper has higher conductivity, aluminum provides an economical alternative when properly sized and installed.
                            NETA Level 2 technicians must recognize material properties when inspecting bus systems and evaluating resistance measurements.


                            질문 # 22
                            Why shouldlint-free ragsbe used when cleaning circuit breaker components?

                            정답：C

                            설명：
                            Lint fibers can attract dust, moisture, and contaminants, which may degrade insulation and interfere with mechanical movement. NETA Level 2 technicians are expected to maintain cleanliness during maintenance and testing activities to prevent introducing foreign material that could affect breaker performance or reliability.


                            질문 # 23
                            A series circuit contains two resistors. One resistor dissipates 10 W and the other dissipates 15 W. What is the total power dissipation?

                            정답：B

                            설명：
                            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.


                            질문 # 24
                            Which portion of a three-phase system carries current through the windings of a transformer or motor?

                            정답：A

                            설명：
                            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.


                            질문 # 25
                            When personnel are working in apermitted confined space, how many attendants must remain outside the space and for how long?

                            정답：A

                            설명：
                            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.


                            질문 # 26
                            ......

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