During an inspection of the main turbine,...

Question 1 / 270705eccefa0bacbc34ba4d47152

Question 1 of 270705eccefa0bacbc34ba4d47152

During an inspection of the main turbine, you notice flow marks or discoloration across the diaphragm joints. This condition indicates __________.

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Question 1 of 27070

During an inspection of the main turbine, you notice flow marks or discoloration across the diaphragm joints. This condition indicates __________.

🔍 Key Concepts

• how steam should normally flow through properly seated turbine diaphragms • typical visual signs of erosion vs. leakage at a diaphragm joint • effects of moisture or carryover in multi-stage turbines

💭 Think About

• Ask yourself what physical condition would cause visible flow marks to appear across a joint line instead of evenly along the flow path. • Consider whether the symptom described points more to alignment/seating problems, to water quality/chemistry, or to normal high-temperature operation. • Think about where water would show its effects first in a turbine and what that damage typically looks like compared to a joint that is not tight.

✅ Before You Answer

• Match the words "flow marks or discoloration across the diaphragm joints" with what you know about leakage paths. • Distinguish between internal leakage at a joint and water carryover effects deeper in the stages. • Eliminate any choice that would normally cause overall blade or surface erosion rather than a clear pattern right at the joint line.

Question 1 of 27070

During an inspection of the main turbine, you notice flow marks or discoloration across the diaphragm joints. This condition indicates __________.

normal wear for a high temperature unit

water carryover between stages

improper seating of the diaphragm joint

excessive chemical treatment of the boiler water

Question 1 / 270705eccefa0bacbc34ba4d47152

Question 1 of 270705eccefa0bacbc34ba4d47152

During an inspection of the main turbine, you notice flow marks or discoloration across the diaphragm joints. This condition indicates __________.

Back

Question 1 of 27070

During an inspection of the main turbine, you notice flow marks or discoloration across the diaphragm joints. This condition indicates __________.