Engine: Motor Plants and Auxiliary Boilers

1. A A reading of 15" of water column (negative) could indicate that the filter element is restricted with dust or that the filter element is being bypassed due to an improper seal. Either condition is equally likely to result in this reading.
2. B A reading of 5" of water column (negative) could indicate that the filter element is restricted with dust or that the filter element is being bypassed due to an improper seal. Either condition is equally likely to result in this reading.
3. C A reading of 5" of water column (negative) indicates that the filter element is restricted with dust, and a reading of 15" of water column (negative) indicates that the filter element is being bypassed due to an improper seal.
4. D A reading of 15" of water column (negative) indicates that the filter element is restricted with dust, and a reading of 5" of water column (negative) indicates that the filter element is being bypassed due to an improper seal.

Tip: press A-D to answer