When the dew point of the outside air is lower than or equal to the dew point of the air in the cargo hold,you should().
- Asecure all ventilation
- Bshut down the exhaust blowers
- Cshut down the intake blowers
- Dventilate the cargo hold
When the dew point of the outside air is lower than or equal to the dew point of the air in the cargo hold,you should().
1、When the starting air valve closes on
When the starting air valve closes on one cylinder, another starting air valve has () opened on another cylinder whose piston has just commenced its downward stroke.AjustBnearlyCmerelyDalready
2、The dew point temperature is().
The dew point temperature is().Aalways higher than the air temperatureBalways lower than the air temperatureCequal to the difference between the wet and dry bulb temperaturesDthe temperature at which the air is saturated with water vapor
Fog forms when the air().AIs 50% water saturatedBIs 90% water saturatedCTemperature is greater than the dew point temperatureDTemperature is equal to,or below the dew point temperature
4、The dew point of air is reached when t
The dew point of air is reached when the wet bulb temperature is ().ATwice the dry bulb temperatureB10℃ above the dry bulb temperatureC5℃ above the dry bulb temperatureDEqual to the dry bulb temperature
5、When the air charge contacts with the
When the air charge contacts with the cylinders and pistons and mixes with the residual gases, it will()Aincrease in temperatureBlose its energy partlyCexpand and do workDbegin to be compressed
Fog forms when the air().Ais 50% water saturatedBis 90% water saturatedCtemperature is greater than the dew point temperatureDtemperature is equal to,or below the dew point temperature