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- Third Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q538 - Steam Plants II
86. Which of the devices listed is found on an LP main propulsion steam turbine casing?
A sentinel valve is correctly identified as a warning device mounted on an LP main propulsion steam turbine casing, designed to provide an audible alert of abnormal pressure rise. It differs from relief valves, which provide full pressure protection, and bypass valves and sliding beams, which serve different system functions.
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