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- First Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q512 - General Subjects II
356. Which of the illustrated valves is used to gain access to a hermetic system and features a Schrader core valve which is unseated by the core depressor of hose fitting when attached
Choice D is correct; it is a Schrader access fitting brazed into hermetic systems, designed to open only when a gauge hose with a core depressor is attached, unseating the Schrader core.
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