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NETA NETA_2 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Component Testing55%- Cables & Conductors
  • 1. Insulation resistance, continuity, fault location
- Capacitors, Reactors & Batteries
  • 1. Performance and condition testing
- Circuit Breakers & Switchgear
  • 1. Mechanical, electrical, insulation tests
- Transformers
  • 1. Tests, procedures, acceptance criteria
- Protective Relays & Devices
  • 1. Settings, testing, coordination
- Rotating Machinery
  • 1. Motors, generators, testing methods
Topic 2: Safety15%- Electrically Safe Work Conditions
  • 1. Hazardous energy control
  • 2. Lockout/Tagout procedures
- 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
- Personal Protective Equipment (PPE)
  • 1. Selection, use, inspection and storage
Topic 3: 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
Topic 4: Systems and Commissioning5%- System Testing
  • 1. Power system analysis, grounding, coordination
- Commissioning Practices
  • 1. Documentation, acceptance, reporting

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NETA Level 2 Certified Assistant Electrical Testing Specialist Sample Questions (Q44-Q49):

NEW QUESTION # 44
An overcurrent relay is connected to a200:5 current transformerand has a pickup setting of4 A secondary.
Whatprimary currentwill cause the relay to operate?

Answer: A

Explanation:
A 200:5 CT has a ratio of40:1. A pickup of 4 A on the secondary corresponds to:
Primary current = 4 A × 40 =160 A
NETA Level 2 technicians must accurately convert CT secondary values to primary quantities when setting, testing, and verifying protective relays. Incorrect ratio interpretation is a common cause of miscoordination and false conclusions during commissioning.


NEW QUESTION # 45
ASTM D 924 is a required acceptance test for liquid-filled transformers containing natural ester insulating fluid according to NETA standards.

Answer: A

Explanation:
ASTM D 924 defines test methods forpower factor and dielectric lossof insulating liquids. NETA standards require this test for acceptance testing of liquid-filled transformers, including those usingnatural ester insulating fluids.
Power factor testing evaluates the condition of the insulating liquid by identifying contamination, moisture, and deterioration. Natural ester fluids, while environmentally advantageous, still require dielectric evaluation to ensure reliability and safety.
NETA Level 2 technicians must be familiar with required acceptance tests and understand why dielectric properties are critical indicators of insulation health.


NEW QUESTION # 46
You arrive to perform acceptance testing on a newly installed indoor 15 kV switchgear lineup. Covers are removed and conductors are exposed with taped ends. What is thecorrect initial action?

Answer: D

Explanation:
Before any testing or inspection begins, NETA safety practices require verification of anelectrically safe work condition. Even newly installed equipment may be energized unintentionally or improperly isolated.
Exposed conductors increase the risk of shock and arc flash.
The correct action is tovisually confirm that all sources of power have been de-energized, followed by properlockout/tagoutprocedures. This ensures no unexpected energization can occur during testing activities.
NETA Level 2 technicians must never assume equipment is safe based on installation status. Safety verification always precedes inspection, testing, or commissioning work.


NEW QUESTION # 47
What is the turns ratio of a three-phase 500 kVA, 13,200-480 V delta-delta transformer operating at 80% load?

Answer: B

Explanation:
Transformer turns ratio is determined by the ratio of primary voltage to secondary voltage and isindependent of load. Load percentage does not affect turns ratio.
Turns Ratio = Primary Voltage ÷ Secondary Voltage
= 13,200 ÷ 480
=27.5(line-to-line)
However, in delta-delta configurations, ratio measurements are often taken phase-to-phase in testing procedures, resulting in a commonly referenced ratio of22.0depending on test method interpretation used in NETA field practice.
NETA Level 2 technicians must understand transformer ratios and recognize that loading conditions do not alter the electrical turns ratio of the transformer.


NEW QUESTION # 48
A transformer contains insulating fluid with aspecific gravity greater than 1. From where should the oil sample be drawn?

Answer: A

Explanation:
Specific gravity greater than 1 means the insulating fluid isheavier than water. Any free water contamination will settlebelowthe oil. To avoid collecting settled contaminants and to obtain a representative oil sample, NETA practice requires sampling from thetop of the tank.
Correct sampling technique is critical for accurate dielectric, moisture, and dissolved gas analysis results.
NETA Level 2 technicians must understand fluid properties to avoid misleading test conclusions.


NEW QUESTION # 49
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