The main propulsion turbine should be...

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Question 1 of 205eccefa1bacbc34ba4d472cc

The main propulsion turbine should be operated with the __________.

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5eccefa1bacbc34ba4d472cc

The main propulsion turbine should be operated with the __________.

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🔍 Key Concepts

• Relationship between steam pressure, nozzle opening, and turbine efficiency • How using more or fewer nozzles affects steam velocity and throttling losses • Effect of high vs. low chest pressure on overall turbine performance and fuel economy

💭 Think About

• Think about whether turbines are more efficient when steam is throttled a lot or a little before entering the nozzles. • Consider what happens to efficiency if you spread steam flow over many nozzles versus concentrating it through fewer nozzles at a given speed. • Ask yourself: for a fixed shaft speed, which combination will give the best use of steam energy with the least waste?

✅ Before You Answer

• Identify whether higher or lower chest pressure generally reduces throttling losses in a turbine control valve system. • Decide if using more nozzles at a given total steam flow increases or decreases the velocity and energy per nozzle. • Before choosing, match the option that best supports maximum thermal efficiency and minimum steam wastage at the required speed.

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Question 1 of 205eccefa1bacbc34ba4d472cc

The main propulsion turbine should be operated with the __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d472cc

The main propulsion turbine should be operated with the __________.

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