輪機(jī)英語船舶電氣與船舶安全單項(xiàng)選擇題每日一練(2019.01.20)

來源：考試資料網(wǎng)

1 In the two stroke diesel engine, it is designed so that the oil impingement is timed to proceed only on the piston ring belt during（）

2 Which of the following operation will have a direct impact on the rate of wear in a cylinder liner （）

3 Generator brushes are staggered to（）

4 The displacement of a ship is to the total weight, all told, of the relevant loaded ship（）

5 To determine that a compartment contains sufficient oxygen to sustain life, you should use a/an （）.