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Question

Difficulty: MediumDirect Fact Retrieval

Read the following technical passage:

During routine servicing of aircraft liquid oxygen (LOX) converters, ground crew technicians must verify that the converter build-up coil is free of frost accumulation before flight. If external frost appears along the lower housing during stabilization, technicians must immediately depressurize the vent line to prevent cryogenic seal degradation. The system pressure gauge must stabilize between 285 and 305 psi within twelve minutes of closing the external fill valve. If stabilization takes longer than fifteen minutes, the relief valve assembly must be removed for ultrasonic cleaning.

Based on the passage, technicians must depressurize the vent line immediately if frost forms along the lower housing during stabilization.

Answer: Answer

Answer

True
The statement is true because the passage explicitly directs technicians to immediately depressurize the vent line if external frost appears along the lower housing during stabilization.

Step-by-Step Solution

1
Scan the passage for the specific condition regarding frost on the lower housing.
Located the sentence: 'If external frost appears along the lower housing during stabilization, technicians must immediately depressurize the vent line to prevent cryogenic seal degradation.'
Direct fact retrieval requires isolating the exact sentence addressing lower housing frost.
2
Compare the mandatory action stated in the text with the statement in the prompt.
The text explicitly requires immediate depressurization of the vent line under that exact condition.
Verifying that the required action and trigger condition correspond directly confirms factual accuracy.
3
Conclude the truth value of the evaluated statement.
The statement directly reflects the facts explicitly stated in the text.
Since the statement matches the passage without alteration or unsupported extrapolation, it is true.

Key Concept

Direct Fact Retrieval in Technical Maintenance Passages
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Topics

Direct Fact Retrieval

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