A、open；the minimum components
B、open；the high cooling efficiency
C、central；there are more coolers and a extra set of pumps
D、central；there is only one component contacts seawater
更多“The cooling system（） needs least maintenance work for in this kind of system（）”相关的问题
A、A.the central cooling system, different B、B.the central cooling system, the same C、C.the open cooling system, different D、D.the open cooling system, the same
A、A.cooling water of the cooling system B、B.fuel of the FO system C、C.LO of the LO system D、D.cooling water of the cooling system and LO of the LO system
A、Defective temperature controls in the system B、Cavitation in the cooling water pump C、Opened vent in the cooling system D、Restricted water passages in the engine
A、improper venting of the cooling system B、carrying the expansion tank water level too high C、a totally clogged impeller in the cooling water pump D、an incorrectly set cooling system temperature control
A、discharge side of the centrifugal pump B、suction side of the centrifugal pump C、the lowest point of the cooling water system D、inlet of the main engine
A、The source of cooling to a RAID system B、The cooling system in a redundant power supply C、A cooling system that can be installed in case of failure D、A second cooling system in case of a failure
A、air binding of the engine cooling system B、a cracked water cooled exhaust manifold C、blockage in the heat exchanger D、faulty operation of the thermostat
A、A.An open vent in the cooling system B、B.A fouled sea chest C、C.A restricted water passage in the engine D、D.Air entrained in the cooling water
A、A.air in the cooling system B、B.an overhauled water pump C、C.correct amount of coolant D、D.no air in the cooling system
A、insufficient condenser cooling water B、excessive condenser cooling water C、air in the refrigeration system D、excessive refrigerant in the system
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