Regulations require that tank vessels handling grade B liquids shall have their cargo pumps separated from all sources of vapor ignition by（）.<br>A:cofferdams<br>B:empty cargo spaces<br>C:gas tight bulkheads<br>D:areas equipped with power ventilation

Regulations require that tank vessels handling grade B liquids shall have their cargo pumps separated from all sources of vapor ignition by（）.
A:cofferdams
B:empty cargo spaces
C:gas tight bulkheads
D:areas equipped with power ventilation

出自：海船船员证

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