单项选择题
The bridge should inform the engine room before passing through congested or shallow waterway（）
A.24 hours
B.2 hours
C.1 hours
D.15 minutes
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相关考题
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单项选择题
During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?（）
A.excess amount of oily-water mixtures in bilges
B.insulation of piping including exhaust pipes in engine room contaminated by oil
C.improper operation of bilge pumping arrangements
D.there were an actual emergency -
单项选择题
During sea trial, the main engine well be kept run at load（）
A.100%
B.110%
C.85%
D.different -
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During the dock repair, should be measured firstly before tail shaft drawn out（）
A.the sinking of tail shaft
B.the clearance of stern bearing
C.the total flexure of shaft
D.main engine crankshaft deflection
