A、the compressor suction pressure is not too high
B、all air is purged from the pump and charging fittings
C、the high pressure cutout switch is held open to prevent accidental starting
D、the condenser is completely shutdown first
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A、A.more harmful to sea life than lighter oils B、B.easier to clean up than lighter refined oils C、C.less harmful to sea life than lighter oils D、D.not a real threat to marine life
A、filter to remove the fuel oil B、use the settler to remove the fuel oil C、remove the fuel oil by centrifuging D、drain and then renew the lube oil supply
A、adding small amounts of oil to the system B、the system has been overheated C、the system has been drained and then filled with new oil D、the system has been idle for a long period of time
A、A. when installing SSD drives B、B. when adding a new workload C、C. when installing SATA drives D、D. when adding more Linux hosts
A、change from heavy fuel oil to diesel oil for mail engine B、pumping oil bilge water C、change sea chest form high level one to lower one D、test emergency generator
A、air from contacting the oil vapors B、permitting re-ignition boiling of the heated oil C、spontaneous combustion below the oil surface D、toxic fumes from escaping to the surface
A、pumped overboard to calm the seas B、drained to the lower hull to reduce free surfaces C、filled to ensure that sufficient fuel oil is available during a lengthy emergency D、partially drained to increase free surfaces in order to reduce motions
A、Lube oil is diluted and its viscosity is reduced B、Sulfuric acid is formed C、Bearings become pitted ad immediately fail D、Valve stems develop sludge deposits
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