輪機英語單項選擇題每日一練(2020.03.19)

來源：考試資料網(wǎng)

1 When starting a reciprocating pump, the inlet valve should be （）.

2 The （） of the gravity disc is too big It causes oil to flow through the water outletWe changed the disc and no oil is found in the water outlet.

點擊查看答案&解析

3 In heavy marine engine the practice is to drive the engine on（）which has previously been stored in starting air reservoirs.

點擊查看答案&解析

4 Which of the following precautions must be taken if an electric immersion heater is used to keep the coolant in a diesel engine warm during the time the engine is secured?（）

點擊查看答案&解析

5 The cooling water of the diesel engine should be treated, because it has（）

點擊查看答案&解析

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区 狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

輪機英語單項選擇題每日一練(2020.03.19)

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久