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单选题
Fuel oil tanks must be fitted with （） that can be closed rapidly and remotely in the event of an emergency such as a fire.
A
stop valves
B
non-return valves
C
quick closing valves
D
relief valves
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单选题Which of the following operations need to be entered on the Oil Record Book Part I?（） (1) Cleaning of fuel oil tanks (2) Internal transfer of fuel oilA
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单选题When preparing a ship for heavy weather，fuel oil day tanks should be（）.A
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drained to the lower hull to reduce free surfacesC
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单选题The temperature of the fuel oil received during bunkering operations is critical in determining the（）A
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