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NETA NETA_2 Exam Syllabus Topics:

SectionWeightObjectives
Electrical Testing Fundamentals and Theory25%- Electrical Mathematics
  • 1. Trigonometry, vectors, phasors
- Basic Electrical Theory
  • 1. Circuit analysis and calculations
  • 2. AC/DC circuits, Ohm's law, power, energy
- Measurement Principles
  • 1. Instrumentation, accuracy, calibration
  • 2. Measurement techniques and units
Component Testing55%- Rotating Machinery
  • 1. Motors, generators, testing methods
- Protective Relays & Devices
  • 1. Settings, testing, coordination
- 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
Safety15%- 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
- Electrically Safe Work Conditions
  • 1. Lockout/Tagout procedures
  • 2. Hazardous energy control
- Personal Protective Equipment (PPE)
  • 1. Selection, use, inspection and storage
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 (Q88-Q93):

NEW QUESTION # 88
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 # 89
What is themaximum allowable deviationbetween resistance measurements on bolted electrical connections?

Answer: B

Explanation:
NETA standards allow a maximum deviation of50%between comparable bolted connection resistance measurements. Deviations beyond this threshold may indicate loose hardware, corrosion, contamination, or improper installation. NETA Level 2 technicians must identify abnormal readings and recommend corrective action.


NEW QUESTION # 90
For aDielectric Absorption Ratio (DAR)test on a transformer, the 1-minute insulation resistance value is divided by the value obtained at:

Answer: B

Explanation:
The Dielectric Absorption Ratio (DAR) is defined as:
DAR = IR at 60 seconds ÷ IR at 30 seconds
This test evaluates insulation quality by observing how resistance increases as polarization effects develop.
NETA Level 2 technicians use DAR testing as a quick diagnostic tool, particularly when full polarization index (PI) testing is not practical.


NEW QUESTION # 91
Which of the following equations correctly represents the relationship betweencapacitance (C),charge (Q), andvoltage (V)?

Answer: C

Explanation:
Capacitance is defined as the amount of electric charge stored per unit of voltage applied across a capacitor.
Mathematically, this relationship is expressed asC = Q / V, where capacitance is measured in farads, charge in coulombs, and voltage in volts. NETA Level 2 technicians must understand this fundamental relationship when interpreting capacitor test data, evaluating dielectric performance, and understanding how voltage stress affects insulation systems. This equation also underpins energy storage calculations and dielectric stress analysis in power system components.


NEW QUESTION # 92
How many connection points are typically found on a Kelvin bridge used for low-resistance measurements?

Answer: B

Explanation:
A Kelvin bridge, also known as a four-wire resistance measurement device, usesfour connection pointsto accurately measure very low resistances. These consist of twocurrent terminalsand twopotential (voltage) terminals.
This configuration eliminates the effects of lead resistance and contact resistance, which can significantly distort measurements when testing bolted connections, bus joints, and grounding conductors. NETA Level 2 technicians routinely use Kelvin methods when performing low-resistance ohmic measurements during acceptance and maintenance testing.
Using fewer than four terminals would result in inaccurate readings, especially at milliohm or micro-ohm levels. Understanding this principle ensures proper test setup and reliable data interpretation.


NEW QUESTION # 93
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