To raise vacuum on the main turbine unit,...

Question 1 / 205eccefa1bacbc34ba4d472d2

Question 1 of 205eccefa1bacbc34ba4d472d2

To raise vacuum on the main turbine unit, you should __________.

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Question 1 of 20

5eccefa1bacbc34ba4d472d2

To raise vacuum on the main turbine unit, you should __________.

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🔍 Key Concepts

• Main condenser and vacuum: How vacuum is created and maintained in a steam turbine system • Gland sealing steam: Purpose of steam to turbine glands and its effect on air leakage and vacuum • Hot well level and lube oil system: What they affect versus what directly affects condenser vacuum

💭 Think About

• Which action would most directly reduce air leakage into the turbine/condenser system and help build vacuum, rather than just support lubrication or warm-up? • Think about how vacuum is actually formed in a condenser—what role does steam flow and sealing of shaft glands play in removing air and allowing the condenser to pull a vacuum? • Which option, if done incorrectly, could actually harm the ability to maintain vacuum instead of improving it?

✅ Before You Answer

• Verify which system has the primary role in preventing air ingress at the turbine casing and shaft penetrations • Confirm which action would assist the air ejectors or vacuum pumps in establishing vacuum instead of defeating their purpose • Check which choice, if taken to the extreme (e.g., pumping something dry), would clearly be unsafe or operationally incorrect for normal vacuum-raising procedures

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Question 1 of 20

To raise vacuum on the main turbine unit, you should __________.

start the lube oil pump after starting the jacking gear

warm up and drain the main steam lines

pump the main condenser hot well dry

admit gland sealing steam to the turbine glands

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Question 1 / 205eccefa1bacbc34ba4d472d2

Question 1 of 205eccefa1bacbc34ba4d472d2

To raise vacuum on the main turbine unit, you should __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d472d2

To raise vacuum on the main turbine unit, you should __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed