單項選擇題

Which of the following conditions may need to be reduced when operating a large, low speed, main propulsion, diesel engine at low loads?（）

A.Injection pressures
B.Control air supply pressure
C.Cooling water flow through after-coolers
D.Lube oil temperature

你可能感興趣的試題

The procedures recommended for auxiliary boilers having high salinity include （）.

A.treating with oxygen scavengers
B.securing the boiler and giving it a blowing down
C.increasing the pH
D.reducing the phosphate level

單項選擇題

Excessive alkalinity of the water in an auxiliary boiler can cause （）.

A.caustic embrittlement of the boiler metal
B.acidic corrosion of the boiler metal
C.hard scale deposits on the boiler tubes
D.etching of the heat exchange surfaces

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

Which of the following conditions may need to be reduced when operating a large, low speed, main propulsion, diesel engine at low loads?（）

你可能感興趣的試題

The procedures recommended for auxiliary boilers having high salinity include （）.

Excessive alkalinity of the water in an auxiliary boiler can cause （）.

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