Question 44Steam Plants - QMED
70% to passWhich of the devices listed is found on an LP main propulsion steam turbine casing?
ADuplex set of relief valves
BHP turbine bypass valve
CSentinel valve
DSliding beam
AI Explanation
The correct answer is C) Sentinel valve. A sentinel valve is a safety device found on the casing of a main propulsion steam turbine. It is designed to release excess steam pressure in the event of a malfunction or overpressure situation, protecting the turbine from damage. This is a key safety feature required by Coast Guard regulations for steam turbine propulsion systems. The other options, while relevant to steam turbine systems, are not specifically required on the turbine casing itself. The duplex relief valves, HP turbine bypass valve, and sliding beam are found in other parts of the steam propulsion system, but not directly on the turbine casing.
Related Questions
Q172:According to the illustrated auxiliary steam and HP bleed system diagram, what s... Q104:The connections labeled "A" in the illustration, are used to SG-0025 Q189:When blowing tubes, what is the determining factor in deciding how many revoluti... Q122:What is the purpose of the item labeled "nozzle" located on the illustrated stea... Q177:If live steam is supplied directly to the tank heating coils, the collected drai...
Ready to test your knowledge?
Take a Steam Plants - QMED Practice ExamOfficial Resources