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| Section | Weight | Objectives |
|---|---|---|
| Testing Equipment and Instrumentation | 20-25% | - Insulation Testing Equipment
|
| Electrical Theory and Fundamentals | 15-20% | - Electrical Safety Principles
|
| Testing Procedures and Standards | 25-30% | - NFPA 70E Electrical Safety
|
| Component Testing | 20-25% | - Transformers Testing
|
| Documentation and Reporting | 10-15% | - Reports and Certification
|
>> Valid NETA_2 Exam Format <<
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NEW QUESTION # 49
Which trigonometric function is equal to theopposite side divided by the hypotenuseof a right triangle?
Answer: B
Explanation:
Thesineof an angle is defined as the ratio of the opposite side to the hypotenuse. Trigonometry is used in power factor analysis, phasor relationships, impedance calculations, and AC circuit analysis. NETA Level 2 technicians must understand these relationships when evaluating voltage, current, and phase angles in testing scenarios.
NEW QUESTION # 50
How many connection points are typically found on a Kelvin bridge used for low-resistance measurements?
Answer: D
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 # 51
Electrical equipment working space must have at least two entrances of sufficient area to permit access.
Answer: A
Explanation:
Working space and egress requirements exist to ensure personnel canquickly exitan area in the event of an arc flash, fire, or other emergency. Codes and safety practices commonly requiretwo means of egress(two entrances) when certain conditions are met, particularly when large equipment, high fault current, or certain room layouts increase risk and limit escape paths.
From a NETA Level 2 safety standpoint, the practical takeaway is that equipment rooms must not trap workers. Adequate working clearances and egress routes must be verified as part of safe work planning- especially during commissioning where multiple panels may be open, temporary barriers may exist, and contractors may crowd the space.
While the exact conditions and thresholds can vary by NEC article and equipment rating, the concept tested here matches the flash-card: providing at least two entrances is considered a compliant requirement for safe access to electrical equipment working space in the relevant scenario context.
NEW QUESTION # 52
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: B
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 # 53
Which voltage is recommended by NETA-ATS for a15-minute AC withstand teston a three-phase34.5 kV line sectionalizerrated for a150 kV impulse withstand voltage?
Answer: B
Explanation:
NETA-ATS specifies withstand test voltages based on equipment rating and impulse withstand capability. For a 34.5 kV line sectionalizer with a 150 kV BIL, the recommended15-minute AC withstand test voltage is 78 kVAC. NETA Level 2 technicians must apply the correct test voltage to avoid damaging insulation while still verifying dielectric integrity.
NEW QUESTION # 54
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