单项选择题
A.decreased compression ratio B.higher than normal power consumption C.un-loader malfunction D.water in the lubricating oil
The function of lubricating oil is to （）.A.reduce frict...
单项选择题The function of lubricating oil is to （）.
A.reduce friction between moving surfaces B.provide even distribution of bearing wear C.reduce the accumulation of harmful detergents D.maintain a constant oil temperature output at each beating
In a flash distilling unit, evaporator feed (seawater) ...
单项选择题In a flash distilling unit, evaporator feed (seawater) first absorbs heat in the （）.
A.vapor feed heater B.air ejector condenser C.saltwater heater D.distillate cooler
An independent bilge suction is required for （）.A.balla...
单项选择题An independent bilge suction is required for （）.
A.ballast tanks B.sludge tanks C.machinery space bilges D.cargo hold bilges
