单项选择题X 纠错
A.the sinking of tail shaft
B.the clearance of stern bearing
C.the total flexure of both end bearing
D.main engine crankshaft deflection
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单项选择题
A.the repair standard of main docking repair item
B.the special tool for repair item
C.the skill of repairer
D.the status of docking repair equipment
单项选择题
A.making the repair list, booking spare parts and special tools for the dock repair
B.shutting off all of the SW valves to outboard
C.the sketches or diagrams used for the dock repair
D.cleaning up the oil tank and boiler before enter the dock
单项选择题
A.the SW outboard valves
B.the tailshaft LO stop valve
C.the drain valve of the boiler
D.propeller shaft sealing device
单项选择题
A.sea valve chest, sect valve, thruster
B.bilge motherboard, steering and the shaft system
C.sea water system
D.fresh water system
单项选择题
A.Ⅰ
B.Ⅱ
C.Ⅰ+Ⅱ
D.Ⅲ
单项选择题
A.quality
B.reliability
C.price fluctuating
D.applicability
单项选择题
A.the reason of replacing
B.the course of replacing
C.crews who do this work
D.where and when the replacing being done
单项选择题
A.Cooling water is alkalescence
B.cooling water is acidity
C.cooling water has salinity
D.cooling water has impurity
单项选择题
A.alkale scence
B.acidity
C.salinity
D.impurity
单项选择题
A.stop the LO pump, SW pump, FW pump
B.stop the priming FO transfer pump
C.engage the turning gear
D.open the scavenge air belts drain valve and cover the turbocharger silencer with the dustproof cover