Question 92Steam Plants - QMED

The correct answer is D) facilitate water removal. The main reason for having a low suction line on the fuel oil service or settling tanks is to allow for the removal of water that naturally settles to the bottom of the tank. This design feature ensures that the fuel oil being drawn into the system is free of water contamination, which could otherwise damage the fuel system components or cause issues with engine performance. The low suction placement allows the pump to draw fuel from below the water level, facilitating the removal of accumulated water from the bottom of the tank. The other answer choices are incorrect because they do not directly address the purpose of the low suction line, which is to enable the removal of water from the fuel system.