A、has continuously for a long period
B、suction pressure is below normal
C、oil level is below normal
D、starts after a long idle period
更多“Excessive oil foaming in the crankcase of a refrigeration compressor is most likely to occur（） when the compressor.”相关的问题
A、A.Excessive valve train lubrication B、B.Leaking standby oil cooler core C、C.Excessive lube oil pressure D、D.Excessive lube oil in the system
A、clogged lube oil piping B、excessive valve-guide clearance C、high lube oil viscosity D、low lube oil temperature
A、a clogged filter element B、excessive lube oil pump discharge pressure C、excessive lube oil flow D、excessively hot lube oil
A、loss of additives from the lube oil B、carbon deposits in the lube oil C、excessive centrifuging D、excessive fuel dilution
A、using a slightly dirty air filter B、using oil having an excessive viscosity C、intercooler or after-cooler leaks D、carrying the oil level higher than normal
A、crankcase B、low lube oil temperature C、excessive oil consumption D、low bearing oil pressure
A、excessive crankcase pressure B、excessive lube oil temperature C、contamination of the lube oil by water D、contamination of the cooling water by lube oil
A、excessive lube oil consumption B、lower than normal lube oil temperature C、higher than normal exhaust back pressure D、excessive crankshaft end play
A、Low lube oil temperature B、Dirty lube oil strainer C、Low lube oil pressure D、High lube oil temperature
A、A.corrosive deterioration of a bearing B、B.inadequate air filtration C、C.excessive ring and liner wear D、D.excessive cooling of lubricating oil
客服
TOP
查看正确答案
