Question 52Steam Plants - QMED70% to pass
Why are two fuel oil heaters "E" provided in the fuel oil system shown in the illustration? Illustration SG-0009
AI Explanation
The correct answer is C) To provide a backup in case one of the heaters becomes inoperable.
The reason this is the correct answer is that having two fuel oil heaters provides a redundancy in the system. If one of the heaters were to fail or become inoperable, the second heater would be able to maintain the necessary fuel oil temperature for the boilers, ensuring continued operation. This redundancy is an important safety feature to prevent disruptions in the fuel supply and maintain the overall reliability of the vessel's propulsion and power systems.
The other options are incorrect because they do not accurately describe the purpose of having two fuel oil heaters. Providing fuel at different temperatures to each boiler (option A) is not necessary, and having two heaters to supply fuel to different boilers (option D) is also not the primary reason for the redundancy.
Related Questions
#50 The astern guarding valve on main propulsion steam turbine units must be open when a vessel is _______________.#51 An overheated bearing in the main propulsion unit is indicated by _______________.#53 If water hammer develops while opening the valve in a steam line, which of the following actions should be taken? #54 In terms of the completeness of combustion, in viewing the condition of the stack, what would be the indication of the LEAST complete combustion and LOWEST boiler efficiency? #55 In terms of the diluting effect of excessive excess air, when viewing the flame through a peephole, what would be the indication of the greatest diluting effect with far too much excess air?