航海英語雷達(dá)及ARPA的使用單項(xiàng)選擇題每日一練(2019.01.10)

來源：考試資料網(wǎng)

1 You are using a radar in which your own ship is shown at the center，and the heading flash always points to 0°. If bearings are measured in relation to the flash，what type of bearings are produced? （）

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2 The fitting of an efficient radar reflector is likely to considerably increase the ship’s probability of（）.

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3 When using the ARPA in heavy rain，which action should you take? （）

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4 The radar control that reduces weak echoes out to a limited distance from the ship is the（）.

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5 To determine if risk of collision exists，a vessel which is fitted with radar must use（）.

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