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NETA NETA_2 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Component Testing55%- Electrical Equipment Testing
  • 1. Cables and insulation diagnostics
    • 2. Transformers insulation resistance testing
      • 3. Protective devices and relays overview
        • 4. Circuit breakers testing procedures
          Topic 2: Safety15%- Electrical Safety Fundamentals
          • 1. Arc flash and shock hazard awareness
            • 2. Lockout/Tagout procedures
              • 3. Hazard identification and risk mitigation
                Topic 3: Systems and Commissioning5%- System-Level Testing
                • 1. Commissioning procedures
                  • 2. System verification and documentation
                    Topic 4: Electrical Testing Fundamentals and Theory25%- Measurement Principles
                    • 1. Instrumentation usage
                      • 2. Test data interpretation
                        - Basic Electrical Theory
                        • 1. AC/DC fundamentals
                          • 2. Ohm's law and power relationships

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                            NETA Level 2 Certified Assistant Electrical Testing Specialist Sample Questions (Q26-Q31):

                            NEW QUESTION # 26
                            The smallest particle of a substance that still retains the properties of that substance is a:

                            Answer: D

                            Explanation:
                            Amoleculeis the smallest unit of a substance that retains its chemical and physical properties. This basic scientific principle supports understanding of insulating materials, gases, and liquids used in electrical equipment, particularly when discussing dielectric behavior and contamination effects.


                            NEW QUESTION # 27
                            During aCT saturation test, voltage increases sharply with little increase in current. What does this indicate?

                            Answer: B

                            Explanation:
                            A sharp rise in voltage with minimal increase in current indicates the CT core has reachedmagnetic saturation. Beyond this point, the CT cannot accurately reproduce primary current. NETA Level 2 technicians must identify saturation points to ensure CTs are suitable for protection applications and that relay performance will be reliable during high-current faults.


                            NEW QUESTION # 28
                            Writethree thousand forty-eight ten-thousandthsin decimal form.

                            Answer: D

                            Explanation:
                            Ten-thousandths represent four decimal places. Three thousand forty-eight ten-thousandths equals:
                            3048 ÷ 10,000 =0.3048
                            NETA Level 2 technicians must be comfortable with decimal placement and numerical interpretation because testing instruments frequently display values in decimal form. Misplacing a decimal point can lead to serious errors when evaluating resistance, voltage, current, or insulation values.


                            NEW QUESTION # 29
                            Which lubricant is commonly specified for use in bothconductiveandmechanicalareas of circuit breakers and switches?

                            Answer: A

                            Explanation:
                            Circuit breakers and switches include bothcurrent-carrying interfaces(where conductivity and contact integrity matter) andmechanical moving components(where friction, wear, and smooth operation matter).
                            NETA Level 2 objectives expect technicians to follow manufacturer guidance and industry-accepted practices for cleaning and lubrication during inspection and maintenance activities.
                            Mobil 28is widely referenced in the industry for breaker and switch applications because it performs reliably over a broad temperature range and provides stable lubrication for mechanical parts while being used in certain conductive interfaces where specified. The key is that lubrication must match the component requirements: too much lubricant, the wrong type, or applying lubricant in inappropriate locations can attract contamination, increase resistance at contacts, or interfere with proper mechanism operation.
                            WD-40 is not an appropriate precision lubricant for breaker mechanisms. Graphite can be conductive and create unintended paths, and dielectric silicone greases are primarily intended for insulating/anti-moisture applications rather than general breaker conductive/mechanical lubrication unless specifically approved.
                            In NETA-style work, lubrication is not "generic"-it is controlled by procedure, manufacturer instructions, and the intended function of the surfaces involved.


                            NEW QUESTION # 30
                            Cells are connected inseriesin order to increase:

                            Answer: D

                            Explanation:
                            When electrical cells are connected in series, their individual voltages add together, increasing the overall voltage ratingof the battery string. Current capacity remains the same as that of a single cell.
                            NETA Level 2 technicians frequently encounter battery banks used for control power, protective relays, and emergency systems. Understanding series versus parallel connections is essential when testing battery voltage, interpreting readings, and diagnosing capacity or voltage issues during commissioning and maintenance.


                            NEW QUESTION # 31
                            ......

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