A back pressure trip on a ship's service...

Question 1 / 270705eccefa0bacbc34ba4d47108

Question 1 of 270705eccefa0bacbc34ba4d47108

A back pressure trip on a ship's service turbo-generator functions to trip the turbine under what circumstance?

Question 1 of 27070

A back pressure trip on a ship's service turbo-generator functions to trip the turbine under what circumstance?

🔍 Key Concepts

• Steam turbine-generator protection systems and why they trip to prevent damage • Role of the condenser and vacuum / back pressure in a marine steam plant • What happens to turbine operation when condenser vacuum is lost or reduced

💭 Think About

• Ask yourself: What does the term back pressure refer to in relation to a turbine exhaust and condenser? • Which of these conditions would most likely cause a loss of condenser vacuum and an unsafe rise in exhaust (back) pressure? • Which of the listed conditions would threaten turbine efficiency and mechanical safety by changing the pressure at the turbine exhaust side?

✅ Before You Answer

• Be clear on the difference between lube oil pressure trips and back pressure trips — they protect against different hazards. • Connect insufficient vs. excessive cooling water to what happens to condenser temperature and vacuum (and therefore back pressure). • Verify which listed condition directly affects condenser vacuum/back pressure, not some other part of the system.

Question 1 of 27070

A back pressure trip on a ship's service turbo-generator functions to trip the turbine under what circumstance?

amount of cooling water to the condenser is insufficient

lubricating oil pressure is too low

gland seal leakoff pressure is too high

amount of cooling water to the condenser is excessive

Question 1 / 270705eccefa0bacbc34ba4d47108

Question 1 of 270705eccefa0bacbc34ba4d47108

A back pressure trip on a ship's service turbo-generator functions to trip the turbine under what circumstance?

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Question 1 of 27070

A back pressure trip on a ship's service turbo-generator functions to trip the turbine under what circumstance?