航海英語(yǔ)船舶設(shè)備名稱(chēng)單項(xiàng)選擇題每日一練(2019.01.21)

來(lái)源：考試資料網(wǎng)

1 The rudders are amidships and both screws are going ahead. What will happen if the starboard screw is stopped?（）

2 The bypass valve on a self-contained breathing device should be opened if（）.

3 The connected joints of pipe，usually made of three joints of pipe approximately 90 feet long，racked in the derrick when making a trip are called a（）.

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4 The purpose of a bilge well is to（）.

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5 A wooden float placed between a ship and a dock to prevent damage to both is called a（）.

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