Question 1913 Deck General

The correct answer is D) All of the above. This is because when water-cooled engines are installed on small passenger vessels, the cooling system must meet the following requirements: 1. The cooling system pump must operate whenever the engine is operating to ensure proper engine cooling. 2. The raw water intake for the cooling system must have a suitable hull strainer to prevent debris from entering the system and causing damage. 3. The cooling system may use a closed fresh water system, which is more reliable and easier to maintain than an open raw water system. The other options are incorrect because they do not fully address all the necessary requirements for a water-cooled engine cooling system on a small passenger vessel.