Question 161Motor Plants - QMED

The correct answer is A) changing filter elements would not interrupt engine operation. A duplex filter unit is the best arrangement for a continuous operation diesel engine because it allows for filter elements to be changed without interrupting engine operation. With a duplex system, there are two separate filter housings that can be isolated and serviced independently, ensuring that the engine's oil flow is not disrupted during filter changes. The other answer choices are incorrect because B) filtering does not necessarily occur twice in each pass, C) clogging can still occur, and D) the pressure drop is not necessarily half of a single filter unit, as it depends on the specific filter design and flow rate.