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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Component Testing | 55% | - Electrical Equipment Testing
|
| Topic 2: Safety | 15% | - Electrical Safety Fundamentals
|
| Topic 3: Systems and Commissioning | 5% | - System-Level Testing
|
| Topic 4: Electrical Testing Fundamentals and Theory | 25% | - Measurement Principles
|
Candidates for the NETA_2 exam can rely on our practice material because it is of the greatest quality and will assist them in preparing for the NETA certification test successfully on the first try. PrepAwayPDF's main goal is to offer 100% actual NETA_2 Exam Questions in order to help applicants clear the NETA_2 test in a short time. We are confident that our updated NETA_2 practice questions will help you pass the NETA Level 2 Certified Assistant Electrical Testing Specialist (NETA_2) certification exam on the first attempt.
NEW QUESTION # 59
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 # 60
What is meant by adead-tank circuit breaker?
Answer: C
Explanation:
Adead-tank circuit breakeris designed so that the interrupter assembly and associated operating components are contained within ametal tank that is bonded to ground potential. Because the enclosure is grounded ("dead"), the tank is not energized during normal operation. This construction reduces touch potential hazards and provides a robust, grounded barrier around interrupting components.
This contrasts with alive-tank breaker, where the external housing or tank is atline potential, requiring greater external clearances and insulation coordination. From a testing perspective, NETA Level 2 work commonly includes verifying breaker integrity through insulation resistance, contact resistance, functional checks, and in some applications, power factor testing or vacuum bottle integrity testing (depending on breaker type). Understanding "dead-tank" vs "live-tank" is important because it influences safe work practices, test lead placement, and interpretation of results (particularly for insulation-related tests and grounding considerations).
NETA objectives emphasize technicians being able to identify equipment construction types and apply the appropriate test approach and safety controls, especially regarding grounded enclosures, bonding, and the management of induced or stored energy.
NEW QUESTION # 61
Which document should be consultedfirstbefore performing any circuit breaker testing or maintenance?
Answer: D
Explanation:
NETA standards require technicians to followmanufacturer's instructionsfirst, as they define specific procedures, tolerances, and limitations for the equipment. NETA standards supplement-not replace- manufacturer requirements.
NEW QUESTION # 62
A 3-phase, 480 V system supplies a balanced load drawing50 A line currentat a0.85 lagging power factor.
What is thetotal real powerdelivered to the load?
Answer: A
Explanation:
Real power in a three-phase system is calculated using:
P = #3 × V_L × I_L × PF
P = 1.732 × 480 × 50 × 0.85
P #35,300 W (35.3 kW)
NETA Level 2 technicians must be able to correctly apply three-phase power equations during load verification, commissioning, and troubleshooting. Errors in power calculations can lead to incorrect conclusions regarding transformer loading, feeder capacity, and protective device coordination.
NEW QUESTION # 63
A digital multimeter (DMM), when set to measure voltage, typically has which type of input impedance?
Answer: C
Explanation:
Digital multimeters are designed withhigh, fixed input impedance-typically 10 megohms or higher-when measuring voltage. This minimizes loading effects on the circuit under test and allows accurate measurement without significantly altering circuit conditions.
NETA Level 2 technicians must understand meter characteristics to avoid misinterpretation of readings. High input impedance is especially important when testing control circuits, electronic relays, and high-resistance paths. Unlike analog meters, DMMs do not significantly load the circuit, making them suitable for precise voltage measurements in modern electrical systems.
NEW QUESTION # 64
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