If the main propulsion turbine begins to...

Question 1 / 270705eccefa0bacbc34ba4d47154

Question 1 of 270705eccefa0bacbc34ba4d47154

If the main propulsion turbine begins to vibrate severely while you are increasing speed, you should __________.

Question 1 of 27070

If the main propulsion turbine begins to vibrate severely while you are increasing speed, you should __________.

🔍 Key Concepts

• Critical speed of rotating machinery (main turbine, main engine, etc.) • Dangers of severe vibration: damage to bearings, blades, and alignment • Standard engineering practice when you hit a vibration zone while changing speed

💭 Think About

• When you feel severe vibration while increasing speed, what is your first priority: keeping schedule or protecting the machinery? • Is it safer to push harder through a vibration range, stay in it, or move away from it in a controlled, cautious way? • What action allows you to quickly reduce the stress on the turbine while still maintaining control and the ability to respond to future bells?

✅ Before You Answer

• Verify which options would prolong operation at the vibrating speed range and therefore increase damage risk • Check which choice best reflects a cautious, protective response that still keeps the plant available if needed • Eliminate any option that suggests remaining at or increasing a speed that is already causing severe vibration

Question 1 of 27070

If the main propulsion turbine begins to vibrate severely while you are increasing speed, you should __________.

open the throttle wider to pass through the critical speed

immediately slow the turbine to see if the vibration will stop

stop the turbine and not answer any more bells

hold the turbine at that speed until vibration stops

Question 1 / 270705eccefa0bacbc34ba4d47154

Question 1 of 270705eccefa0bacbc34ba4d47154

If the main propulsion turbine begins to vibrate severely while you are increasing speed, you should __________.

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Question 1 of 27070

If the main propulsion turbine begins to vibrate severely while you are increasing speed, you should __________.