On small passenger vessels, cooling water...

Question 1 / 2707066636ee728f7522a1c518996

Question 1 of 2707066636ee728f7522a1c518996

On small passenger vessels, cooling water for the exhaust lines from an internal combustion engine must be which of the following?

Back

Question 1 of 27070

On small passenger vessels, cooling water for the exhaust lines from an internal combustion engine must be which of the following?

🔍 Key Concepts

• Small passenger vessel machinery requirements in 46 CFR Subchapter T • Purpose of exhaust cooling water on small diesel/gas engines • Difference between raw (seawater) cooling and closed freshwater cooling systems

💭 Think About

• Think about where a reliable, continuous source of cooling water would normally come from on a small passenger vessel’s main engine. • Consider which option would be practical and automatically available whenever the engine is running, without needing crew intervention. • Ask yourself which choice matches typical small-boat practice: does exhaust cooling water usually come from potable tanks, chemical treatment, or directly from an engine-related pump/system?

✅ Before You Answer

• Verify which option describes a source of water that is automatically supplied whenever the engine operates. • Eliminate any option that would reduce potable water supply for passengers or domestic use. • Check which choice aligns with the normal design of raw-water cooled exhaust systems on small marine engines.

Question 1 of 27070

On small passenger vessels, cooling water for the exhaust lines from an internal combustion engine must be which of the following?

Obtained from the engine's cooling water system or from a separate engine-driven pump

Flushed and changed periodically

Obtained from a freshwater storage tank or an expansion tank

Chemically treated to prevent corrosion

Question 1 / 2707066636ee728f7522a1c518996

Question 1 of 2707066636ee728f7522a1c518996

On small passenger vessels, cooling water for the exhaust lines from an internal combustion engine must be which of the following?

Back

Question 1 of 27070

On small passenger vessels, cooling water for the exhaust lines from an internal combustion engine must be which of the following?