How is an auxiliary turbine boiler feed pump...

Question 1 / 2707066636ef128f7522a1c520f7f

Question 1 of 2707066636ef128f7522a1c520f7f

How is an auxiliary turbine boiler feed pump normally stopped?

Question 1 of 27070

How is an auxiliary turbine boiler feed pump normally stopped?

🔍 Key Concepts

• Steam turbine boiler feed pump controls – how steam is admitted and cut off • Difference between normal shutdown and emergency/abnormal actions on small auxiliary turbines • What happens to turbine speed when you change exhaust conditions or driven load

💭 Think About

• Which option directly and positively shuts off or trips the steam supply to the turbine driving the boiler feed pump? • Which options would be unsafe, unreliable, or only indirectly affect speed instead of actually securing the turbine? • On a small auxiliary turbine, what device is provided near the throttle for quickly stopping the unit without changing system load or exhaust back pressure?

✅ Before You Answer

• Identify which choice involves a positive means of cutting off steam to the turbine • Eliminate any option that mainly affects load on the driven machine but does not actually shut the turbine steam off • Eliminate any option that only changes exhaust conditions (back pressure) rather than positively stopping the pump

Question 1 of 27070

How is an auxiliary turbine boiler feed pump normally stopped?

By actuating the throttle hand tripping device

By rotating the hand lube oil pump backwards

By closing the exhaust valve slightly

By increasing the load on the driven unit

Question 1 / 2707066636ef128f7522a1c520f7f

Question 1 of 2707066636ef128f7522a1c520f7f

How is an auxiliary turbine boiler feed pump normally stopped?

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Question 1 of 27070

How is an auxiliary turbine boiler feed pump normally stopped?