Question 587Steam Plants - Assistant Engineer
70% to passTo stop the rotor of a main turbine while underway at sea you should _______________.
Asecure all steam to the turbine
Btighten the stern tube packing gland
Capply the prony brake
Dadmit astern steam to the turbine after securing the ahead steam
AI Explanation
The correct answer is D) admit astern steam to the turbine after securing the ahead steam. To stop the rotor of a main turbine while underway at sea, the proper procedure is to secure the ahead steam to the turbine and then admit astern steam. This allows the turbine to be reversed, slowing down the rotor and bringing the ship to a stop. Option A, securing all steam to the turbine, would simply stop the turbine without reversing it. Option B, tightening the stern tube packing gland, is unrelated to stopping the turbine. Option C, applying the prony brake, is not the correct way to stop a main turbine.
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