Coast Guard Exams
Question 98Motor Plants - 1st Asst/Chief70% to pass

The greatest difference between the centrifuge bowl shown in the illustration and that of a tubular bowl, with straight, vertical, interior surfaces, is that the illustrated unit_______________. Illustration MO-0012

Diagram for question 98
AI Explanation
The correct answer is D) is self desludging. The key difference between the centrifuge bowl shown in the illustration and a traditional tubular bowl is that the illustrated unit has a conical shape, rather than straight, vertical interior surfaces. This conical shape allows the bowl to be self-desludging, meaning it can continuously remove accumulated solids (sludge) without needing to be shut down for manual cleaning. The other answer choices are incorrect because: A) the discharge ring is still required, B) the rotational speed is not specified, and C) there is no information provided about the rotational speed difference compared to the old tubular bowl.