Question 295Motor Plants - Assistant Engineer

The correct answer is A) changing filter elements would not interrupt engine operation. A duplex filter unit consists of two filter housings that can be isolated from each other. This allows the filters to be changed without interrupting the engine's operation - one filter can be removed and replaced while the other continues to filter the oil. This is the primary advantage of a duplex filter arrangement for a continuously running diesel engine, as it avoids any downtime or operational disruptions during maintenance. The other answer choices are incorrect because: B) filtering occurring twice per pass is not a unique advantage of a duplex system, C) clogging can still occur, and D) the pressure drop is not necessarily half of a single filter, as it depends on the filter design.