In a closed, re-circulating fresh water...

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Question 1 of 2066636eef28f7522a1c51f844

In a closed, re-circulating fresh water cooling system used for the main engines on your vessel, what function would chemical treatment with molybdate primarily perform?

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Question 1 of 20

66636eef28f7522a1c51f844

In a closed, re-circulating fresh water cooling system used for the main engines on your vessel, what function would chemical treatment with molybdate primarily perform?

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🔍 Key Concepts

• Closed fresh water cooling systems on main engines and why they use chemical treatment • The primary industrial use of molybdate compounds in water systems (e.g., boilers, cooling systems) • Difference between corrosion control, scale control, and biological control in cooling water

💭 Think About

• Think about what problem is most critical inside steel engine jackets and cooling passages when using fresh water over long periods. • Ask yourself: is molybdate more commonly associated with changing physical properties of water (like freezing/boiling) or with protecting metal surfaces? • Consider what other chemicals (like glycol or biocides) are usually used for the functions listed and compare them to molybdate.

✅ Before You Answer

• Identify which options (A–D) relate to changing physical properties of the water versus protecting metal surfaces or controlling organisms. • Recall that many corrosion inhibitors work by forming a protective film or passivating the metal surface—decide which option best matches that role. • Verify from your engineering studies which treatment chemicals are typically described as corrosion inhibitors versus antifreeze agents or biocides.

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Question 1 of 2066636eef28f7522a1c51f844

In a closed, re-circulating fresh water cooling system used for the main engines on your vessel, what function would chemical treatment with molybdate primarily perform?

Back

Question 1 of 20

66636eef28f7522a1c51f844

In a closed, re-circulating fresh water cooling system used for the main engines on your vessel, what function would chemical treatment with molybdate primarily perform?

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

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