[单选题]A diesel engines crankcase oil level is found to be too high√ You should suspect that （）.A . the engine was over filledB . there might be a fuel leakC . there might be a water leakD . all of the above
[填空题] LOW SURGE TANK AUX.WATER LEVEL表示（）。
[单选题]E．xcessive oil foaming in the crankcase of a refrigeration compressor is most likely to occur when the compressorA．has run continuously for a long periodB．suction pressure is below normalC．oil level is below normalD．starts after a long idle period
[单选题]Before pumping up the crankcase oil,（） should be worked by hand to minimize corrosive action on the liners.A . the indicatorsB . the starting valvesC . the cylinder lubricatorsD . the turning gear
[单选题]当滑油量低于多少时出现“LOW OIL LEVEL”闪烁指示，这时需要给APU加滑油（）A . 3.9夸脱；B . 4.9夸脱；C . 5.9夸脱。
The oil-level is indicated with a level gauge and is measured through____ ()A. a
[单选题]If the temperature drops low enough, oil will not flow, （） just tell us the temperature.A . Hash pointB . ViscosityC . Pour pointD . Cetane number
[单选题]Cylinder lubrication oil for low speed main propulsion diesel engines is admitted to each cylinder during （）.A . the power strokeB . the compression strokeC . low load operation onlyD . periods of standby
[单选题]C．an you measure oil level? Which method is right, to measure ullage height or to measure oil depth?
[单选题]APU工作期间，“APU LOW OIL PRESSURE”灯亮：（）.A .要求机组关掉APUB .可以继续使用APU，但不能使用APU引气C .要求机组将APU电门放到”OFF”位后，再放到”START”位1-2秒松手D .APU自动关车