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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Systems and Commissioning | 5% | - Commissioning Practices
|
| Topic 2: Safety | 15% | - Risk Assessment
|
| Topic 3: Electrical Testing Fundamentals and Theory | 25% | - Basic Electrical Theory
|
| Topic 4: Component Testing | 55% | - Cables & Conductors
|
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NEW QUESTION # 60
Power factor is defined as:
Answer: B
Explanation:
Power factor is the ratio ofreal power (watts)toapparent power (volt-amperes). This ratio indicates how effectively electrical power is being converted into useful work. NETA Level 2 technicians must understand power factor when evaluating system efficiency, loading, and the impact of reactive components.
NEW QUESTION # 61
A transformer contains insulating fluid with aspecific gravity greater than 1. From where should the oil sample be drawn?
Answer: B
Explanation:
Specific gravity greater than 1 means the insulating fluid isheavier than water. Any free water contamination will settlebelowthe oil. To avoid collecting settled contaminants and to obtain a representative oil sample, NETA practice requires sampling from thetop of the tank.
Correct sampling technique is critical for accurate dielectric, moisture, and dissolved gas analysis results.
NETA Level 2 technicians must understand fluid properties to avoid misleading test conclusions.
NEW QUESTION # 62
A 120 VAC, 60 Hz circuit supplies a 10 A load at a20° lagging power factor. What is thetrue power?
Answer: A
Explanation:
True power is calculated using.
Here,V,A, and.
Thus,W.
NETA Level 2 technicians must correctly distinguish apparent power from true power when evaluating loads, especially those with inductive characteristics.
NEW QUESTION # 63
Under what condition istagout without lockoutpermitted according to OSHA and NETA safety practices?
Answer: B
Explanation:
Lockout/tagout (LOTO) procedures are a fundamental safety requirement emphasized throughout NETA Level 2 objectives and OSHA 1910.147. Lockout is always the preferred method because it provides a physical restraintpreventing unexpected energization. However, OSHA permitstagout aloneonly under very limited circumstances. One such circumstance is when theenergy-isolating device is not capable of being locked, such as older disconnects or valves without lock provisions.
In these cases, tagout must be supplemented withadditional protective measuresto provide an equivalent level of safety. These measures may include removal of an isolating circuit element, blocking of a control switch, opening of an extra disconnecting device, or removal of fuses. Simply tagging equipment without addressing the lack of physical restraint is not acceptable.
NETA Level 2 technicians must understand that tagout doesnotprovide the same level of protection as lockout. Tags are warnings only and do not physically prevent operation. Therefore, tagout alone is never permitted merely for convenience, voltage level, or supervisory permission. The inability to lock the device is the critical condition that allows tagout to be used, and even then, only with additional safeguards in place.
NEW QUESTION # 64
Shown below is a current transformer with multiple secondary taps. What is the calculated voltage between tapsX1 and X3when200 Vis applied across the full secondary windingX1 to X5?
Answer: B
Explanation:
The voltage developed across a portion of a CT secondary winding is proportional to the number of turns between the selected taps. If 200 V is applied across the full winding from X1 to X5, and the diagram shows that taps X1 to X3 represent 30% of the total turns, then the voltage across X1-X3 is:
200 V × 0.30 =60 V
NETA Level 2 technicians must understand tap relationships during saturation testing, ratio testing, and troubleshooting CT secondary circuits. Incorrect assumptions about tap voltages can result in inaccurate test results or insulation damage during testing.
NEW QUESTION # 65
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