单项选择题

Which of the following items don’t belong to dock repair works?（）

A.the SW outboard valves
B.the tailshaft LO stop valve
C.the drain valve of the boiler
D.propeller shaft sealing device

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单项选择题

When ship in the dock repairing, engine department should emphasize on the inspection of（）

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

We should apply for annual spare parts according to（）
Ⅰ.he need of annual overhaul
Ⅱ.he storage of spare parts
Ⅲ.he storage capacity of spare parts room

A.Ⅰ
B.Ⅱ
C.Ⅰ+Ⅱ
D.Ⅲ

单项选择题

If the ordered spare parts have been modified by manufacturer, which of the following should be pay attention to?（）

A.quality
B.reliability
C.price fluctuating
D.applicability