Which of the following conditions is true...

Question 1 / 205eccef9fbacbc34ba4d46c45

Question 1 of 205eccef9fbacbc34ba4d46c45

Which of the following conditions is true concerning the boiler water drum foundations?

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Question 1 of 20

5eccef9fbacbc34ba4d46c45

Which of the following conditions is true concerning the boiler water drum foundations?

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🔍 Key Concepts

• Boiler expansion and thermal growth in marine installations • Difference between fixed (rigid) supports and sliding/expansion supports on drums and saddles • Purpose and maintenance of sliding feet and chocks on boiler foundations

💭 Think About

• When a boiler heats up, what happens to the length of the drums and how must the foundations be arranged to allow for this? • If one end of the water drum is fixed, what must be true about the other end to avoid excessive stress on the drum and ship’s structure? • How would poor maintenance (rusted/painted sliding surfaces) affect the ability of the foundation to do its job?

✅ Before You Answer

• Verify which parts of the support are intended to be rigidly attached vs. which are intended to slide to absorb expansion. • Check whether good maintenance would involve making sliding surfaces too tight, or keeping them clean, smooth, and free to move. • Consider whether all statements can be simultaneously true, or whether one of them clearly conflicts with the physical need for thermal expansion.

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Question 1 of 20

Which of the following conditions is true concerning the boiler water drum foundations?

All saddles are a rigid support and are welded directly to the ship's framework.

In a typical installation, the water drum is secured solidly to the ship's foundation on one end and free to move on the other.

Good preventive maintenance practice includes chipping the sliding feet and phosphorous bronze chocks to remove all rust and corrosion to insure free movement.

All of the above.

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Question 1 / 205eccef9fbacbc34ba4d46c45

Question 1 of 205eccef9fbacbc34ba4d46c45

Which of the following conditions is true concerning the boiler water drum foundations?

Back

Question 1 of 20

5eccef9fbacbc34ba4d46c45

Which of the following conditions is true concerning the boiler water drum foundations?

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