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NETA NETA_2 Exam Syllabus Topics:

SectionWeightObjectives
Safety15%- Electrically Safe Work Conditions
  • 1. Hazardous energy control
  • 2. Lockout/Tagout procedures
- Personal Protective Equipment (PPE)
  • 1. Selection, use, inspection and storage
- Risk Assessment
  • 1. Safe work practices and hazard recognition
  • 2. Shock and arc-flash protection boundaries
- Regulatory Standards
  • 1. OSHA, NFPA, ANSI, IEEE, NETA standards
Component Testing55%- Circuit Breakers & Switchgear
  • 1. Mechanical, electrical, insulation tests
- Transformers
  • 1. Tests, procedures, acceptance criteria
- Cables & Conductors
  • 1. Insulation resistance, continuity, fault location
- Capacitors, Reactors & Batteries
  • 1. Performance and condition testing
- Protective Relays & Devices
  • 1. Settings, testing, coordination
- Rotating Machinery
  • 1. Motors, generators, testing methods
Electrical Testing Fundamentals and Theory25%- Electrical Mathematics
  • 1. Trigonometry, vectors, phasors
- Measurement Principles
  • 1. Measurement techniques and units
  • 2. Instrumentation, accuracy, calibration
- Basic Electrical Theory
  • 1. Circuit analysis and calculations
  • 2. AC/DC circuits, Ohm's law, power, energy
Systems and Commissioning5%- Commissioning Practices
  • 1. Documentation, acceptance, reporting
- System Testing
  • 1. Power system analysis, grounding, coordination

>> NETA_2受験記対策 <<

NETA_2ファンデーション & NETA_2実際試験

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NETA Level 2 Certified Assistant Electrical Testing Specialist 認定 NETA_2 試験問題 (Q71-Q76):

質問 # 71
Evaluate the expression:

正解：D

解説：
Exponentiation applies to both numerator and denominator:
NETA Level 2 technicians are expected to demonstrate basic mathematical competency for interpreting test data and calculations.


質問 # 72
A digital multimeter (DMM), when set to measure voltage, typically has which type of input impedance?

正解：D

解説：
Digital multimeters are designed withhigh, fixed input impedance-typically 10 megohms or higher-when measuring voltage. This minimizes loading effects on the circuit under test and allows accurate measurement without significantly altering circuit conditions.
NETA Level 2 technicians must understand meter characteristics to avoid misinterpretation of readings. High input impedance is especially important when testing control circuits, electronic relays, and high-resistance paths. Unlike analog meters, DMMs do not significantly load the circuit, making them suitable for precise voltage measurements in modern electrical systems.


質問 # 73
Which type of load is most commonly associated withharmonic distortion?

正解：C

解説：
Variable frequency drives (VFDs) are nonlinear loads that draw current in pulses, producing harmonics.
Understanding harmonic sources helps technicians evaluate heating, nuisance tripping, and power quality issues.


質問 # 74
Secondary injection testing of a low-voltage air circuit breaker is:

正解：B

解説：
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.


質問 # 75
Sample valves should be flushed with at least how much waste liquid before collecting a transformer oil sample?

正解：C

解説：
NETA-recommended oil sampling practices require flushing the sampling valve withat least one quartof waste liquid. This removes stagnant oil, debris, and contaminants that could skew test results.
Accurate oil analysis depends heavily on proper sampling technique. NETA Level 2 technicians must follow flushing and cleanliness requirements to ensure valid dielectric and moisture analysis.


質問 # 76
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