Question 730Steam Plants - Assistant Engineer
70% to passGuardian valves are installed on main propulsion turbines to _______________.
Aprevent steam from leaking into the astern element while the vessel is maneuvering
Bprovide a means to supply steam directly to the astern element of the turbine
Cprevent steam from leaking into the astern element at full sea speed
Dprovide an emergency means of quick throttle closing
AI Explanation
The correct answer is C) prevent steam from leaking into the astern element at full sea speed. Guardian valves are installed on main propulsion turbines to prevent steam from leaking into the astern element of the turbine while the vessel is operating at full sea speed. This helps maintain the integrity of the turbine and ensures efficient and safe operation. The other answer choices are incorrect because they do not accurately describe the primary purpose of the guardian valve.
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