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- Third Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q531 - Motor Plants I
384. In order to determine the restriction across a dry-type air filter on one of the diesel engines on your ship- docking tug, the engine should be operating at rated speed and load. What instrument would give the most accurate measurement of air filter element restriction?
A water manometer provides the most accurate measurement of air filter restriction because it directly measures small pressure drops in inches of water column, the typical unit for this measurement.
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