Marina Exam Reviewer: On an OBO or O/O carrier one frequently finds electrical sockets and switches on deck for use of lighting and other electrical apparatus when operating in the dry cargo mode. Before loading oil these should be:

Marina Exam Reviewer

On an OBO or O/O carrier one frequently finds electrical sockets and switches on deck for use of lighting and other electrical apparatus when operating in the dry cargo mode. Before loading oil these should be: 

A. Electrically isolated by special isolating switchboxes in the accommodation and the keys of these retained by a responsible officer?
B. Switched off locally on deck? 
C. Covered securely with covers made of an electrically insulating material? 
D. Hung with warning signs that they should not be used during the carriage of oil?




Answer:      A. Electrically isolated by special isolating switchboxes in the accommodation and the keys of these retained by a responsible officer?

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