Question 576Steam Plants - Assistant Engineer
70% to passThe turbine of a turbo-electric drive should be secured by _______________.
Atripping the throttle trip by hand
Bdynamic braking of the generator
Cclosing the main steam stops
Dclosing the throttle by hand
AI Explanation
The correct answer is A) tripping the throttle trip by hand. The turbine of a turbo-electric drive should be secured by tripping the throttle trip by hand. This is the proper procedure to safely shut down the turbine in an emergency situation. Tripping the throttle trip by hand will immediately disconnect the turbine from the steam supply, allowing it to rapidly decelerate and come to a stop. The other options are incorrect because: B) dynamic braking of the generator would not directly affect the turbine, C) closing the main steam stops would not immediately stop the turbine, and D) closing the throttle by hand would be a slower process compared to tripping the throttle trip.
Related Questions
Q714:Before placing the jacking gear in operation on a main turbine unit, you must al... Q174:Which of the listed conditions can cause high superheater outlet steam temperatu... Q363:When installing new safety valve escape piping, precautions should include assur... Q676:The purpose of shroud bands secured to the tips of the turbine blades is to ____... Q254:One boiler of a two boiler plant has ruptured a tube and the water cannot be mai...
Ready to test your knowledge?
Take a Steam Plants - Assistant Engineer Practice ExamOfficial Resources