A、A.Reduction of friction
B、B.Insulation of hot surfaces
C、C.Lubrication of moving parts
D、D.Elevation of cooler outlet temperatures
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A、A.Non automatic discharge overboard of machinery space bilge water B、B.Automatic discharge overboard of machinery space bilge water C、C.A and B D、D.Neither A nor B
A、A.be open to view so，if a foreign object gets in the gearing，the operator can immediately stop the machinery B、B.have a guard over the gearing C、C.be painted a contrasting color from the base color in order to call attention to the gearing D、D.not be operated if there is any crew within 10 feet of the machinery
A、A.continue to be responsible for machinery space operations despite the presence of the CE B、B.hand over the responsibility actively C、C.be responsible for the watching together with the chief engineer D、D.assistant the chief engineer to control the machinery
A、ventilate all compartments，see that the machinery is clean and there are no obstructions B、just turn the key and start up C、take for granted that there are no fuel leaks D、assume there are no volatile fumes in the engine space
A、Failure of proper operation of propulsion and other essential machinery, as well as electrical installation B、Failure of the proper operation of the main and auxiliary steering gear C、Failure of engineering watch arrangements to confirm to the requirements specified for the ship by Administration D、Failure of the proper operation of emergency generator, lighting, batteries and switches
A、any sailing vessel with propelling machinery B、any vessel propelled by machinery C、any sailing vessel with or without machinery for propelling D、any sailing vessel with propelling machinery not in use
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