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Zorluk: Çok zorDirect Fact Retrieval

During phase-three avionics maintenance on the EA-18G Growler, technicians must follow strict procedural sequencing to recalibrate the ALQ-218 tactical jamming receiver. Initially, the primary power distribution panel is isolated, and a baseline voltage sweep is conducted. Following the sweep, if the baseline deviates by more than 1.5 millivolts, the secondary harmonic filter must be entirely replaced rather than bypassed. Regardless of the voltage sweep results, the cryogenic cooling lines must then be purged with medical-grade nitrogen at a pressure of 45 PSI for exactly 12 minutes to remove condensation. Finally, before restoring main power, the technician must verify that the antenna waveguide connections are torqued to 85 inch-pounds to prevent radio frequency leakage.

According to the passage, what specific action is required if the baseline voltage sweep deviates by more than 1.5 millivolts?

  1. The secondary harmonic filter must be entirely replaced.Cevap
  2. B
    The secondary harmonic filter must be bypassed.
  3. C
    The cryogenic cooling lines must be purged with nitrogen at 45 PSI.
  4. D
    The antenna waveguide connections must be torqued to 85 inch-pounds.

Cevap

The secondary harmonic filter must be entirely replaced.
The passage directly links the condition of a baseline deviating by more than 1.5 millivolts to the specific action of entirely replacing the secondary harmonic filter.

Adım Adım Çözüm

1
Analyze the question's specific constraint.
Identify the target condition: an action required when 'the baseline voltage sweep deviates by more than 1.5 millivolts'.
Focusing on the exact condition prevents falling for steps that apply to different phases of the maintenance protocol.
2
Scan the text for the 1.5 millivolts condition.
Locate the sentence: 'Following the sweep, if the baseline deviates by more than 1.5 millivolts, the secondary harmonic filter must be entirely replaced rather than bypassed.'
Direct fact retrieval requires finding the exact sentence where the condition and its resulting action are stated.
3
Evaluate the options against the retrieved fact.
Confirm that entirely replacing the secondary harmonic filter is the correct action, and ensure the negative qualifier ('rather than bypassed') eliminates the incorrect bypassing option.
To select the correct answer without falling for verbatim traps or misreading negative constraints.

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