Question 170Motor Plants - QMED70% to pass
According to the illustrated diesel engine fuel treatment and fuel service systems schematic, what would be the appropriate valve configuration for operating the two heavy fuel oil purifiers in series? Illustration MO-0077
AI Explanation
The correct answer is D) Valves 2 and 3 CLOSED, and Valve 6 OPEN.
This configuration allows the two heavy fuel oil purifiers to operate in series, with the fuel flowing through Valve 6 and being purified by both purifiers. Valves 2 and 3 are closed to isolate the individual purifiers and force the fuel to pass through both in sequence. This is the appropriate valve configuration for operating the two purifiers in series, as indicated by the schematic.
The other answer choices are incorrect because they do not properly isolate the purifiers and allow the fuel to flow through both units in series.
Related Questions
#168 Which of the listed substances can be satisfactorily removed from diesel fuel by centrifuging? #169 When monitoring a heavy fuel oil treatment plant, what would be an indication that the treatment plant throughput volume is less than the main engine consumption? #171 Whether using a centrifuge or a simple filter, oil cleaning and filtration will be the most effective when the oil is at a _______________.#172 According to the illustrated diesel engine fuel treatment and fuel service systems schematic, what statement is true concerning the valves labeled "4" and "5"? Illustration MO-0077 #173 Which of the following methods is normally used to lubricate bearings in a small high- speed diesel engine?