Gasoline tanks should be filled（）.

1、Fuel oil tanks must be fitted with （）

Fuel oil tanks must be fitted with （） that can be closed rapidly and remotely in the event of an emergency such as a fire.Astop valvesBnon-return valvesCquick closing valvesDrelief valve

2、Expansion tank should be used to remov

Expansion tank should be used to remove （） from cooling water.AscaleBsludgeCchemicalsDair

3、Before welding can be done in a tank t

Before welding can be done in a tank that has carried petroleum products，a certificate must be obtained from（）.Athe CustomsBthe Register Bureau of ShippingCthe Shipyard Fire DepartmentDa certified gas chemist

4、Head tank should be used to remove （）

Head tank should be used to remove （） from cooling water.AscaleBsludgeCchemicalsDair

5、Sufficient cargo tanks shall be（）prior

Sufficient cargo tanks shall be（）prior to each ballast voyage in order that，taking into account the tanker’s trading pattern and expected wea...

6、（） shall be provided to every oil tank

（） shall be provided to every oil tanker of 150 tons gross tonnage and above to record relevant machinery space and cargo/ballast operations....