航海英語(yǔ)船舶動(dòng)力裝置單項(xiàng)選擇題每日一練(2019.01.13)

來(lái)源：考試資料網(wǎng)

1 The pivot pin at the base of a sheath-screw boom davit must be（）.

2 Many sheath-screw davits have markings to indicate the maximum angle to which they should be cranked out. If the angle is exceeded，the davit（）.

3 On a ship，the possibility of a blowout makes which type of diesel engine shutdown desirable?（）

4 If an electric cargo winch is being used to lift a draft of cargo and the engine room loses all power，which will occur?（）

5 All marine low-speed diesels are of what design?（）