Question 319Steam Plants - 1st Asst/Chief
70% to passThe turbine of a turbo-electric drive should be secured by _______________.
Adynamic braking of the generator
Bclosing the throttle by hand
Ctripping the throttle trip by hand
Dclosing the main steam stops
AI Explanation
The correct answer is C) tripping the throttle trip by hand. In the event of a turbine emergency on a turbo-electric drive system, the proper procedure is to trip the throttle trip by hand. This will immediately shut off the steam supply to the turbine, effectively securing the turbine. This is the quickest and most reliable way to stop the turbine in an emergency situation. The other options are not correct. Dynamic braking of the generator (A) would not directly secure the turbine. Closing the throttle by hand (B) may be too slow to react in an emergency. Closing the main steam stops (D) would also not directly secure the turbine.
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