單項(xiàng)選擇題

Any friction fit, tightness or adhesion of the part of any load being lifted should be broken by wedge or tapping and not by increasing the load on the applianceAccording to this sentence, （）

A.the lifting appliance can always lift the freight within its rated load
B.attention should be paid in order not to break the wedge when lifting cargo
C.sometimes the lifting work needs other assistance other than the lifting appliance
D.lifting work should be done with every part fit, tightness or adhesion

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單項(xiàng)選擇題

In order to remove the carbon deposit from the threaded recess, we can use（）

A.a driver
B.a scraper
C.a tap
D.a file

單項(xiàng)選擇題

Waste oil should（）

A.be treated according to the C-Es command exactly
B.be treated according to MARPOL
C.accumulate in bilges or on tank tops in accordance with MARPOL
D.discharge to sea at the specified areas

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Any friction fit, tightness or adhesion of the part of any load being lifted should be broken by wedge or tapping and not by increasing the load on the applianceAccording to this sentence, （）

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In order to remove the carbon deposit from the threaded recess, we can use（）

Waste oil should（）