航海英語(yǔ)貨物裝卸貨作業(yè)單項(xiàng)選擇題每日一練(2019.01.16)

來(lái)源：考試資料網(wǎng)

1 What does “evel-luffing” accomplish during crane operations（）.

2 Pedestal cranes have limit switches to restrict movement of which function（s）（）.

3 To prevent the riser system from buckling under its own weight，upward tension is provided by the（）.

4 （） is not usually used in liquid cargo systems.

5 The proper place（）the sling is made up is the square of the hatch.