航海英語雷達(dá)及ARPA的使用單項選擇題每日一練(2019.01.07)

來源：考試資料網(wǎng)

1 SWEEP INT on radar panel is the abbreviation of（）.

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

3 （）is not a job of the radar antenna.

4 You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?（）.

5 The radar control that shortens all echoes on the display and reduces clutter caused by rain or snow is the（）.