A、a clogged scale trap
B、air in the system
C、automatic controls not functioning properly
D、insufficient cooling water to the condenser
更多“If the temperature in the icebox is too high, the trouble could be（）”相关的问题
A、increase the amount of cooling water to the condenser B、decrease the amount of cooling water to the condenser C、add more refrigerant to the system D、remove some of the refrigerant from the system
A、high steam pressure in the boiler B、abnormally high feed water temperature C、abnormally high boiler water temperature D、steam demand exceeding feed pump capacity
A、a dirty lube oil strainer B、internal water leaks C、an oil suction line restriction D、excessive wears of the cooling water pump
A、amount of temperature rise with no load B、temperature of the compartment where the motor is located C、normal operating temperature, less the room temperature D、amount of temperature developed by an operating motor
A、the saturation temperature is higher B、the higher the saturation temperature C、the higher is the saturation temperature D、the saturation temperature is more high
A、A.Twice the dry bulb temperature B、B.10℃ above the dry bulb temperature C、C.5℃ above the dry bulb temperature D、D.Equal to the dry bulb temperature
A、A.always higher than the air temperature B、B.always lower than the air temperature C、C.equal to the difference between the wet and dry bulb temperatures D、D.the temperature at which the air is saturated with water vapor
A、Intake manifold pressure will be high B、Intake manifold pressure will be unaffected C、Exhaust temperatures will be high D、Exhaust temperatures will be low
客服
TOP
查看正确答案
