信頼できるNETA NETA_2試験勉強過去問 &合格スムーズNETA_2試験情報 |最高のNETA_2最新日本語版参考書

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NETA NETA_2 Exam Syllabus Topics:

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

>> NETA_2試験勉強過去問 <<

NETA_2試験勉強過去問 - NETA Level 2 Certified Assistant Electrical Testing Specialist永遠にパスします

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NETA Level 2 Certified Assistant Electrical Testing Specialist 認定 NETA_2 試験問題 (Q66-Q71):

質問 # 66
Which ANSI device number corresponds to anundervoltage relay?

正解：A

解説：
ANSI device27designates anundervoltage relay. This relay operates when system voltage falls below a preset threshold and is commonly used for motor protection, load shedding, and system interlocking. NETA Level 2 technicians must recognize ANSI device numbers to correctly identify protective functions during testing, troubleshooting, and commissioning.


質問 # 67
To reverse the direction of rotation of a three-phase induction motor, which action is required?

正解：A

解説：
The direction of rotation of a three-phase motor is determined by thephase sequenceof the supply voltage.
Reversingany two phase conductorschanges the phase sequence, which reverses the rotating magnetic field in the stator and therefore reverses motor rotation.
NETA Level 2 technicians frequently verify motor rotation during commissioning and after maintenance.
Understanding phase rotation is essential when performing bump tests, troubleshooting incorrect rotation, or verifying wiring after motor replacement. Reversing all three phases would preserve the original phase sequence and would not change rotation.


質問 # 68
Which portion of a three-phase system carries current through the windings of a transformer or motor?

正解：C

解説：
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.


質問 # 69
Which section of a switchboard receives power from theservice sectionand distributes it to downstream loads?

正解：D

解説：
The distribution section of a switchboard receives incoming power from the service section and feeds branch circuits, feeders, or downstream panels. During commissioning, NETA Level 2 technicians verify continuity, torque, insulation, and protective coordination within the distribution section to ensure reliable power delivery and safe operation.


質問 # 70
A current of30 Ais measured using a100 A, 3% accuracyammeter. What is the maximum possibleactual error?

正解：B

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 # 71
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