P.S. Testpdf在Google Drive上分享了免費的2026 NETA NETA_2考試題庫：https://drive.google.com/open?id=1B0RBWoyann4dw8wMsjRFaOG5T7xgfjSY
Testpdf 考題大師始終致力與為客戶提供 NETA 認證的全真考題及認證學習資料，該題庫根據 NETA 的 NETA_2 考試的變化動態更新，能夠時刻保持題庫最新、最全、最具權威性。能夠幫助您一次通過 NETA_2 認證考試。在購買NETA_2 考試題庫之前，你還可以下載免費的考古題樣本作為試用。這樣你就可以自己判斷這個資料是不是適合自己。
| Section | Weight | Objectives |
|---|---|---|
| Electrical Testing Fundamentals and Theory | 25% | - Basic Electrical Theory
|
| Safety | 15% | - Electrical Safety Fundamentals
|
| Systems and Commissioning | 5% | - System-Level Testing
|
| Component Testing | 55% | - Electrical Equipment Testing
|
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問題 #59
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?
答案：D
解題說明：
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.
問題 #60
A battery bank consists of60 cells, each rated2 V. What is thenominal DC voltageof the battery bank?
答案：D
解題說明：
Battery bank voltage is calculated by summing the individual cell voltages in series:
60 × 2 V =120 V
NETA Level 2 technicians routinely test station batteries used for control power and protection systems.
Accurate voltage verification is critical for ensuring breaker tripping capability and relay operation during loss of AC power.
問題 #61
In ANSI/IEEE device numbering, which device best corresponds toDevice 52?
答案：A
解題說明：
ANSI/IEEE device numbers provide a standardized way to identify protective and control functions in power systems.Device 52designates anAC circuit breaker. It is one of the most commonly referenced device numbers on one-lines, schematics, relay settings sheets, and commissioning documentation.
NETA Level 2 technicians must be comfortable identifying device numbers because testing tasks frequently reference them. For example, when verifying breaker control circuits, interlocks, trip/close coil operation, auxiliary contacts, or anti-pump circuits, drawings may refer to "52a" and "52b" auxiliary contacts (breaker position contacts). Similarly, protection schemes may call for verifying that a relay output properly operates the52 trip circuit.
Correct identification reduces errors during functional testing, secondary injection, and commissioning checks. Misinterpreting device numbers can lead to wiring mistakes, incorrect test points, or a failure to validate protective functions. Therefore, recognizing device 52 as the AC breaker is a core competency within Level 2 electrical testing fundamentals and component testing.
問題 #62
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?
答案：D
解題說明：
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.
問題 #63
A transformer contains insulating fluid with aspecific gravity greater than 1. From where should the oil sample be drawn?
答案：C
解題說明：
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.
問題 #64
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NETA_2 是一個占有一定比重的認證科目。由於人數太少，加上需求太大，導致擁有 NETA_2 認證的人成為薪酬最高的資訊技術專業認證人員。由於技能是本身擁有的，加上在全球範圍內的幾乎所有國家都有類似需求。所以，NETA 的 NETA_2 認證為網路工程師打開了通往全球各地的大門。如果您通過了NETA_2 的考試，將證明你的專業技能和貢獻，展示你的知識與能力。如果你被認證為一個 NETA_2 網路公司的專家，你就會成為這個領域中最有知識的專家之一。
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