航海英語船舶操縱基本知識單項(xiàng)選擇題每日一練(2019.01.23)

來源：考試資料網(wǎng)

1 A vessel fitted with twin screws is easier in（）than a vessel with single screw.

2 As a ship moves through the water，it drags with it a body of water called the wake. The ratio of the wake speed to the ship’s speed is called（）.

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3 A vessel which through some exceptional circumstance is unable to maneuver as required by these Rules and is therefore unable to keep out of the way of another vessel is called（）.

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4 If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is（）.

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5 Besides saving distance along the track line，another advantage of the Scharnow Turn over the Williamson Turn in a man overboard situation because（）.

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