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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Systems and Commissioning | 5% | - Commissioning Practices
|
| Topic 2: Safety | 15% | - Electrically Safe Work Conditions
|
| Topic 3: Electrical Testing Fundamentals and Theory | 25% | - Electrical Mathematics
|
| Topic 4: Component Testing | 55% | - Circuit Breakers & Switchgear
|
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NEW QUESTION # 81
Medium-voltage cable, as defined by NEC Article 328, is rated atwhat minimum voltage?
Answer: B
Explanation:
NEC Article 328 defines medium-voltage cable as cable rated1001 volts or higher, up to 35 kV. This distinction affects installation rules, testing requirements, and safety procedures. NETA Level 2 technicians must correctly classify cable systems to apply appropriate test methods and voltages.
NEW QUESTION # 82
Polarization Index (PI) is defined as the ratio of insulation resistance measured at:
Answer: B
Explanation:
Polarization Index evaluates insulation quality over time and is calculated as:
PI = IR at 10 minutes ÷ IR at 1 minute.
NETA Level 2 technicians use PI testing to assess insulation dryness, cleanliness, and aging.
NEW QUESTION # 83
When personnel are working in apermitted confined space, how many attendants must remain outside the space and for how long?
Answer: C
Explanation:
Confined space safety requirements mandate thatat least one trained attendantremain outside the spacefor the entire duration of the entry operation. The attendant monitors conditions, maintains communication, and initiates rescue procedures if needed. NETA Level 2 technicians must comply with confined space protocols when testing transformers, vaults, or enclosed switchgear compartments.
NEW QUESTION # 84
Writethree thousand forty-eight ten-thousandthsin decimal form.
Answer: B
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 # 85
Which portion of a three-phase system carries current through the windings of a transformer or motor?
Answer: B
Explanation:
Phase currentis the current that flows through each individual winding of a three-phase device such as a transformer or motor. Understanding the difference between phase current and line current is critical because their magnitudes differ depending on whether the system is configured as wye or delta. NETA Level 2 technicians must correctly identify which current is being measured to avoid misinterpreting test results during commissioning, troubleshooting, and performance verification.
NEW QUESTION # 86
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