问题

Fire protection regulations for towing

Fire protection regulations for towing vessels require any fuel line subject to internal head pressure from fuel in the tank to（）.

Abe fitted with a positive fuel shut-off valve located at the tank
Bhave a shut-off valve at the top of the tank
Chave a gate valve easily accessible in the space where the tank is located
Dhave a drain cock at the lowest point in the fuel line

参考答案

参考解析：

分类：船员职务名称题库

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