425. The turbocharged, four-stroke, diesel generator set drive engines on your vessel are protected with dry-type air intake filters. The filter element condition can be evaluated by attaching a water manometer to measure the vacuum in the air duct between the air intake filter and the turbocharger blower inlet. Assume that the manometer reads 10" of water column (negative) at rated engine rpm under full load with a clean, properly sealing filter element. What would a reading of 20" of water column (negative) indicate at rated engine rpm under full load?

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Accepted Answer

the filter element is severely restricted with dust and requires immediate replacement.

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