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Question

Difficulty: MediumDirect Fact Retrieval

During scheduled servicing of hyperbaric recompression chamber life-support loops, technicians must inspect the chemical scrubbing canister. The main canister utilizes sodasorb granules to absorb carbon dioxide exhaled by occupants. Before packing new granules, maintenance personnel must examine the internal mesh screen for corrosion and verify that the moisture trap indicator shows blue, confirming the absence of condensation. If the indicator displays a lavender hue, the filter housing must be purged with dry medical air for ten minutes before granule installation.

According to the passage, what action must personnel take if the moisture trap indicator shows a lavender hue?

  1. A
    Inspect the internal mesh screen for signs of active corrosion
  2. Purge the filter housing with dry medical air for ten minutes before packing granulesAnswer
  3. C
    Purge the filter housing with dry medical air for thirty minutes before installation
  4. D
    Immediately install fresh sodasorb granules to neutralize residual moisture

Answer

Purge the filter housing with dry medical air for ten minutes before packing granules
The author directly states that if the moisture trap indicator displays a lavender hue, technicians must purge the filter housing with dry medical air for ten minutes before granule installation.

Step-by-Step Solution

1
Locate the conditional trigger in the passage referencing the moisture trap indicator showing a lavender hue.
Identified the conditional sentence: 'If the indicator displays a lavender hue, the filter housing must be purged with dry medical air for ten minutes before granule installation.'
Direct fact retrieval requires locating the exact keywords and conditions stated in the question stem.
2
Extract the specific mandated action and its parameters directly from the identified sentence.
The exact required procedure is a ten-minute purge of the housing using dry medical air prior to installing granules.
Ensures the selected response matches the explicit factual statement without distortion or quantitative discrepancy.

Key Concept

Direct Fact Retrieval
Estimated Time:1m 0s
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Direct Fact Retrieval

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