輪機(jī)英語(yǔ)船舶動(dòng)力裝置單項(xiàng)選擇題每日一練(2019.01.09)

來(lái)源：考試資料網(wǎng)

1 The minimum speed an engine must attain before ignition can occur depends upon （）.

2 The function of diesel engine piston compression rings is to （）.

3 Scavenging in a four-stroke/cycle diesel engine occurs during the （）.

4 The scavenging box is built of a number of sections provided with vertical flanges enabling them （） together to form two blocks.

5 Remote control means that the system is being controlled by the operator who is situated （） from the system.