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单选题
Which of the precautions listed should be observed when taking on diesel fuel?（）
A
Secure all lighting to the main deck
B
Provide a portable fan to blow away fumes
C
Prohibit smoking in the area
D
Display a black triangle during daylight hours
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单选题Which statement is FALSE concerning precautions during fueling operations?（）A
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单选题When running a large, low-speed, main propulsion diesel engine on heavy fuel, which of the following precautions should be observed when switching back over to diesel oil?（）A
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Ensure that slings are securely fastened around the loadB
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Keep the loads as close to the rail or deck as possible
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