MDE 13 Q3

Correct Answer: A) Expansion Tank
Explanation: The expansion tank in a keel type cooling water system is used to manage the pressure and temperature of the coolant. It allows for the expansion of coolant as it heats up and helps maintain consistent pressure within the system.

Correct Answer: B) Keel Cooler
Explanation: The keel cooler is the main component of a keel type cooling water system. It is typically mounted along the hull of the vessel and helps dissipate heat from the engine by using seawater to cool the engine's freshwater.

Correct Answer: A) To filter and remove debris from seawater
Explanation: The seawater strainer is used to filter and remove debris from the seawater before it enters the keel cooler. This helps prevent clogging and ensures the efficient operation of the cooling system.

Correct Answer: A) Heat Exchanger
Explanation: The heat exchanger is responsible for isolating the engine's freshwater cooling circuit from the seawater system. It allows heat transfer between the two circuits while keeping them separate to prevent contamination.

Correct Answer: B) Centrifugal Pump
Explanation: The centrifugal pump is responsible for circulating seawater through the keel cooler in a keel type cooling water system. It ensures that seawater flows efficiently to absorb and carry away the heat from the engine's cooling system.