航海英語船舶索具及保養(yǎng)單項(xiàng)選擇題每日一練(2019.01.09)

來源：考試資料網(wǎng)

1 The knot used to join two lines or two large hawsers for towing is called a（）.

2 A stopper used in securing the ground tackle for sea that consists of a grab attached to a turnbuckle is a（）.

3 Under identical load conditions，nylon，when compared with natural fiber line，will stretch（）.

4 A snatch block is a（）.

5 What is an advantage of having wire rope with a fiber core over that of a wire rope of the same size with a wire core?（）