单项选择题
A.dew point temperature B.condensation temperature C.psychometric temperature D.absolute humidity temperature
The tendency for lubricating oil to thin out at high te...
单项选择题The tendency for lubricating oil to thin out at high temperatures and thicken at low temperatures will be characterized by a （）.
A.low viscosity index B.high viscosity index C.high neutralization number D.low demulsibility quality
Increasing the speed of a rotary pump above its rated s...
单项选择题Increasing the speed of a rotary pump above its rated speed will result in which of the following conditions to occur?（）
A.Loss of suction B.Increased clearances C.Decreased clearance D.Decreased slippage
The dew point of air is reached when the wet bulb tempe...
单项选择题The dew point of air is reached when the wet bulb temperature is （）.
A.Twice the dry bulb temperature B.10℃ above the dry bulb temperature C.5℃ above the dry bulb temperature D.Equal to the dry bulb temperature
