NETA_2 Valid Dumps - NETA_2 Dumps

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NETA NETA_2 Exam Syllabus Topics:

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

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NETA Level 2 Certified Assistant Electrical Testing Specialist Sample Questions (Q28-Q33):

NEW QUESTION # 28
Which portion of a three-phase system carries current through the windings of a transformer or motor?

Answer: A

Explanation:
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.


NEW QUESTION # 29
Cells are connected inparallelin order to increase:

Answer: D

Explanation:
When cells are connected in parallel, the voltage of the battery bank remains the same as a single cell, but the current capacity (ampere-hours)increases. Parallel connections allow multiple cells to share load current, increasing the total available current without increasing voltage. NETA Level 2 technicians frequently encounter parallel battery strings in control power systems and must understand this relationship when evaluating capacity, load testing, and charger performance.


NEW QUESTION # 30
On an electrical schematic, adot on a current transformer symbolindicates:

Answer: B

Explanation:
The dot convention indicatespolarity, showing the instantaneous current direction relationship between primary and secondary windings. Correct polarity is critical for protection schemes, differential relays, and metering accuracy. NETA Level 2 technicians must verify CT polarity during installation and commissioning to ensure correct relay operation.


NEW QUESTION # 31
A ground conductor is routed through azero-sequence current transformer (CT)together with the phase conductors feeding the load. What is the most likely result?

Answer: D

Explanation:
Zero-sequence (residual) ground-fault detection works by measuring thevector sum of currentspassing through a CT window. Under normal conditions, the three phase currents sum to approximately zero. If a ground fault occurs, the return current path bypasses the CT window, producing a net residual current that the CT detects.
If theequipment grounding conductor(or neutral/ground return conductor, depending on the scheme) is incorrectly passed through the same CT window along with the phase conductors, the ground-fault return current can be "captured" by the CT. This causes the residual sum to approachzero, even during an actual ground fault-meaning the protective function mayfail to operate.
NETA Level 2 technicians are expected to recognize correct CT installation practices, especially during commissioning and acceptance testing of ground-fault protection schemes. This includes verifying CT polarity, conductor routing, window CT content, and proper secondary wiring before performing injection or functional trip tests. Misrouting conductors is a classic cause of non-operational ground-fault protection.


NEW QUESTION # 32
When personnel are working in apermitted confined space, how many attendants must remain outside the space and for how long?

Answer: B

Explanation:
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.


NEW QUESTION # 33
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