Question 592General Subjects - Assistant Engineer

The correct answer is B) The main engine piston cooling fresh water pumps. The main engine piston cooling fresh water pumps are most likely to require a priming maintenance system or the use of deep well pumps. This is because the piston cooling system operates at a higher pressure and temperature compared to other engine cooling systems, and the pumps may need to overcome the higher static head and lift associated with this system. In contrast, the other cooling water pumps listed operate at lower pressures and may not require as sophisticated a priming system.