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NETA IV Practice Exam Questions - 2022

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    NETA IV Practice Exam Questions - 2022

    See practice questions below:

    Feel free to provide input on solutions

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    When performing maintenance on a 5kV class fuse interrupt switch. ANSI/NETA specifications require that the fuse resistance be measured. For a typical 200E fuse on the primary switch of a 1000 kVA, 4160V transformer, the technician would expect an approximate value of:

    (A) 2000 microhms
    (B) 200 microhms
    (C) 20 microhms
    (D) 200 millohms

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    The sampling valve for a class 1 insulating oil transformer is located at the bottom of the transformer because the specific gravity of oil is:

    (A) 1.0
    (B) 1.21
    (C) 0.91
    (D) 0.65

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    A technician is testing each of the protective elements of a microprocessor-based relay on a circuit breaker. The supervisor informs the technician that the breaker does not have be re-closed every trip because:

    (A) During functional testing each trip path only needs to be tested once
    (B) Testing the breaker trip string is not a required test as part of the protective relay functional test plan
    (C) Tripping the breaker for each protective element is unlike real world conditions
    (D) The close coil may be damaged by repeated operation

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    Which of the following should be found during a visual inspection of the construction and installation of a self-cooled outdoor bus?

    (A) A vapor barrier between connected indoor and outdoor bus sections
    (B) A forced air rating if constant current rating is above 20, 000A
    (C) Positive pressure monitor if current rating is above 20, 000A
    (D) Desiccant filter if constant current rating is above 20, 000A

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    NETA MTS requires that Load flow studies performed in accordance with

    (A) IEEE 242
    (B) IEEE 399
    (C) IEEE 433
    (D) IEEE 839

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    Which electrical component is a source of fault current for incident energy calculations?

    (A) Variable frequency drive
    (B) Synchronous motor
    (C) Network protector
    (D) Load tap changer

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    In accordance with ANSI/NETA ATS, the required insulating gas tests on an SF6 switch include moisture, dielectric breakdown, SF6 decomposition products and

    (A) Air
    (B) Interfacial tension
    (C) Specific gravity
    (D) Flammable gasses

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    Which grounding system enhancement technique is considered permanent without requiring future maintenance?

    (A) Chemical electrodes
    (B) Conductive cement encased rods
    (C) Bentonite clay encased rods
    (D) Magnesium salt soil additive

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    A technician measuring the power loss (dBm) of a 1000 run of multimode fiber-optic cable obtained results below the minimum signalling threshold of the receiving equipment which has been running for several years. A second test result was different but also below the signalling threshold. The most likely issue is the

    (A) Fiber power meter is defective and a new meter needs to be utilized to complete the measurements
    (B) Fiber termination is loose, leading to poor connection between the test light source and receiver
    (C) Transmitting equipment uses a higher power light source than reported which overcomes the dBm losses
    (D) Fiber power meter was never calibrated for loss on a reference cable before testing for power loss

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