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NETA NETA_2 Exam Syllabus Topics:

SectionWeightObjectives
Systems and Commissioning5%- System Testing
  • 1. Power system analysis, grounding, coordination
- Commissioning Practices
  • 1. Documentation, acceptance, reporting
Component Testing55%- Capacitors, Reactors & Batteries
  • 1. Performance and condition testing
- Cables & Conductors
  • 1. Insulation resistance, continuity, fault location
- Circuit Breakers & Switchgear
  • 1. Mechanical, electrical, insulation tests
- Rotating Machinery
  • 1. Motors, generators, testing methods
- Protective Relays & Devices
  • 1. Settings, testing, coordination
- Transformers
  • 1. Tests, procedures, acceptance criteria
Safety15%- Risk Assessment
  • 1. Safe work practices and hazard recognition
  • 2. Shock and arc-flash protection boundaries
- Electrically Safe Work Conditions
  • 1. Hazardous energy control
  • 2. Lockout/Tagout procedures
- Regulatory Standards
  • 1. OSHA, NFPA, ANSI, IEEE, NETA standards
- Personal Protective Equipment (PPE)
  • 1. Selection, use, inspection and storage
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

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NETA Level 2 Certified Assistant Electrical Testing Specialist Sample Questions (Q16-Q21):

NEW QUESTION # 16
In azone-selective interlocking (ZSI)scheme, what condition allows an upstream breaker to tripwithout intentional delay?

Answer: C

Explanation:
In ZSI schemes, downstream breakers send restraint signals upstream when they detect faults. Ifno restraint signal is received, the upstream breaker assumes the downstream device failed and tripswithout intentional delayto clear the fault. NETA Level 2 technicians must understand this fail-safe logic when commissioning protection systems and verifying selective coordination.


NEW QUESTION # 17
Harmonics in an electrical system increase the risk of fire and electric shock.

Answer: A

Explanation:
Harmonics cause increased heating in conductors, transformers, and neutral paths, which can degrade insulation and increase fire risk. They can also create unexpected voltage conditions and elevated touch potentials. NETA Level 2 technicians must recognize harmonic-related risks when evaluating system performance, especially in facilities with nonlinear loads such as VFDs and power electronics.


NEW QUESTION # 18
Polarization Index (PI) is defined as the ratio of insulation resistance measured at:

Answer: D

Explanation:
Polarization Index evaluates insulation quality over time and is calculated as:
PI = IR at 10 minutes ÷ IR at 1 minute.
NETA Level 2 technicians use PI testing to assess insulation dryness, cleanliness, and aging.


NEW QUESTION # 19
What is theprimary purposeof the National Electrical Code (NEC)?

Answer: B

Explanation:
The NEC exists to providepractical safeguardsagainst electrical hazards that can cause injury, fire, or property damage. It is not a design manual, testing standard, or training guide, but a safety code intended to minimize risk through installation requirements.
NETA Level 2 technicians must understand that testing and commissioning activities support the NEC's safety intent. Verifying grounding, bonding, overcurrent protection, clearances, and labeling helps ensure installations meet the NEC's fundamental objective of protecting people and property from electrical hazards.


NEW QUESTION # 20
Underground service conductors between the service equipment terminals and the service lateral are referred to as:

Answer: C

Explanation:
Service point conductors connect the utility service lateral to the service equipment terminals. Understanding conductor classification is important during inspection, testing, and verification of grounding and bonding systems. NETA Level 2 technicians must correctly identify conductor types to apply appropriate testing and safety requirements.


NEW QUESTION # 21
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