An excessive charge of refrigerant in an air-cooled refrigeration system can cause （）.
1、The officer in charge of the engineeri
The officer in charge of the engineering （）the watch to the reliving officer if there is reason to believe that the latter is obviously not...
2、The temperature of the refrigerant in
The temperature of the refrigerant in the evaporator coil depends mostly upon the （）.Arefrigerant pressure in the evaporatorBcooling water temperature to the condenserCheat load in the refrigerator compartmentDsolenoid valve in the liquid line
3、Excessive alkalinity of the water in a
Excessive alkalinity of the water in an auxiliary boiler can cause （）.Acaustic embrittlement of the boiler metalBacidic corrosion of the boiler metalChard scale deposits on the boiler tubesDetching of the heat exchange surface
4、The officer in charge of the engineeri
The officer in charge of the engineering watch shall notify the chief engineer without delay （）.Ain any emergency or if in any doubt as to...
5、An excessive amount of water is preven
An excessive amount of water is prevented from entering a vessel using a water lubricated stern tube bearing by the use of the （）.Apropeller hubBlignum vitaeCshaft packingDlabyrinth seal
6、In a refrigeration system, foaming of
In a refrigeration system, foaming of the crankcase oil may cause the （）.Aexpansion valve to overfeedBcompressor to knockCwater regulating valve to failDcrankcase drains to plug