EOOW CG-47 CLASS (with Complete Solutions)

Which samples are weekly? correct answers LPAC, HPAC, CRP What needs to be done for DOD source F/O after a failed test? correct answers Strip tanks when they fail to meet the fuel quality criteria IAW NSTM 541 table 541-10-3 or 541-10-4. How L/O purifier temperature can lead to L/O leaks? correct answers Hotter L/O temp the lower the viscosity of oil and can potentially out of seal. What can you do to ensure shaft is in fact actually stopped if RPM's still read 001? correct answers Have watch stander conduct a visual inspection on the shaft to validate that it has stopped. What are the requirements for F-76 on a CCFD? correct answers 2.64 mg/l (MAX) What are the follow up actions for UNSAT PPS? correct answers Place on recirc until you get a sat sample What are stripping requirements for JP-5 correct answers Strip—>visual test—>CCFD—>DFWD Where are the bearing sight glasses on a GTG? correct answers One between PT & generator turbine and one below PMA Line shaft bearing sump size correct answers 1A/2D LSB (33 gallons) and 2A/2B/2C LSB (13 gallons) sumps What is the purpose of the proficiency L/O sample? correct answers Ensure the purifier is working correctly/doing it's job. How much time will it take to move L/O back to the system after batch purification? correct answers Each MER (2) settling tanks (2040 gallons combine). L/O purifier is rated 500 gph @25-30 psid. 1020/500≈2 hrs (one tank) or 2040/500≈4 hrs (both tanks). How can you get fresh water contamination in the MRG correct answers - L/O purifier malfunction - dehumidifier malfunction - when using fresh water to clean LODS - freshwater layup on L/O cooler How can you get seawater contamination in the MRG? correct answers - L/O cooler internal rupture - a contaminated CRP system could contaminate the MRG system if the purification system is misaligned