検証するNETA_2日本語認定対策 &合格スムーズNETA_2受験料 |実用的なNETA_2日本語対策問題集NETA Level 2 Certified Assistant Electrical Testing Specialist

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NETA NETA_2 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Testing Procedures and Standards25-30%- IEEE Testing Standards
  • 1. IEEE 62.45 Low-Voltage Testing
  • 2. IEEE 4 High-Voltage Testing
- NFPA 70E Electrical Safety
  • 1. Arc Flash Hazard Analysis
  • 2. energized Work Permits
- NETA Maintenance Testing Specifications
  • 1. Acceptance Testing Standards
  • 2. Visual Inspection Procedures
  • 3. Electrical Testing Procedures
Topic 2: Component Testing20-25%- Protective Devices Testing
  • 1. Coordination Studies
  • 2. Overcurrent Relay Tests
- Transformers Testing
  • 1. Excitation Current Tests
  • 2. Turns Ratio Tests
  • 3. Winding Resistance Tests
- Switchgear Testing
  • 1. Contact Resistance Tests
  • 2. Circuit Breaker Timing Tests
  • 3. Dielectric Withstand Tests
- Conductors and Cables Testing
  • 1. Hi-Pot Tests
  • 2. Continuity Tests
  • 3. Insulation Resistance Tests
Topic 3: Electrical Theory and Fundamentals15-20%- AC/DC Circuit Analysis
  • 1. Ohm's Law and Power Calculations
  • 2. Kirchhoff's Laws
  • 3. Three-Phase Systems
  • 4. Series and Parallel Circuits
- Electrical Safety Principles
  • 1. Arc Flash Safety
  • 2. Personal Protective Equipment
  • 3. Lockout/Tagout Procedures
Topic 4: Testing Equipment and Instrumentation20-25%- Voltmeters and Ammeters
  • 1. Digital Multimeters
  • 2. Clamp Meters
- Circuit Breaker Testers
  • 1. Secondary Injection Test Sets
  • 2. Primary Injection Test Sets
- Relay Testing Equipment
  • 1. Protective Relay Testers
- Insulation Testing Equipment
  • 1. Megohmmeters
  • 2. Insulation Resistance Analyzers
  • 3. Hipot Testers
- Grounding and Bonding Testers
  • 1. Earth Resistance Testers
  • 2. Ground Bond Testers
Topic 5: Documentation and Reporting10-15%- Test Documentation
  • 1. Test Results Interpretation
  • 2. Data Recording Procedures
- Reports and Certification
  • 1. Test Report Writing
  • 2. NRTL Certification Requirements

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NETA Level 2 Certified Assistant Electrical Testing Specialist 認定 NETA_2 試験問題 (Q10-Q15):

質問 # 10
In ANSI/IEEE device numbering, which device best corresponds toDevice 52?

正解：B

解説：
ANSI/IEEE device numbers provide a standardized way to identify protective and control functions in power systems.Device 52designates anAC circuit breaker. It is one of the most commonly referenced device numbers on one-lines, schematics, relay settings sheets, and commissioning documentation.
NETA Level 2 technicians must be comfortable identifying device numbers because testing tasks frequently reference them. For example, when verifying breaker control circuits, interlocks, trip/close coil operation, auxiliary contacts, or anti-pump circuits, drawings may refer to "52a" and "52b" auxiliary contacts (breaker position contacts). Similarly, protection schemes may call for verifying that a relay output properly operates the52 trip circuit.
Correct identification reduces errors during functional testing, secondary injection, and commissioning checks. Misinterpreting device numbers can lead to wiring mistakes, incorrect test points, or a failure to validate protective functions. Therefore, recognizing device 52 as the AC breaker is a core competency within Level 2 electrical testing fundamentals and component testing.


質問 # 11
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 # 12
The smallest particle of a substance that still retains the properties of that substance is a:

正解：B

解説：
Amoleculeis the smallest unit of a substance that retains its chemical and physical properties. This basic scientific principle supports understanding of insulating materials, gases, and liquids used in electrical equipment, particularly when discussing dielectric behavior and contamination effects.


質問 # 13
A current of30 Ais measured using a100 A, 3% accuracyammeter. What is the maximum possibleactual error?

正解：D

解説：
Accuracy stated as ±3% of full scale means ±3 A on a 100 A meter. At a 30 A reading, this represents a possible error of±10%of the measured value. NETA Level 2 technicians must account for meter accuracy when interpreting readings, particularly at low portions of full-scale range.


質問 # 14
What is the recommendedminimum insulation resistance valuefor motor windings manufactured before
1970?

正解：C

解説：
For older motor windings, NETA guidance recognizes that insulation systems were often less robust than modern designs. The recommended minimum insulation resistance is100 megohms per kV of rated voltage plus 1 megohm.
This formula provides a baseline for evaluating insulation condition during acceptance or maintenance testing.
NETA Level 2 technicians must not only perform insulation resistance tests correctly, but also interpret results in the context of equipment age, voltage rating, and service conditions. Results below recommended minimums indicate potential moisture, contamination, or insulation degradation requiring corrective action.


質問 # 15
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