If a refrigeration crankcase compressor were short cycling on the low pressure cutout switch, the cause might be that the ().
相似题目
-
If the head pressure of a reciprocating refrigeration compressor is excessive, ().
-
In a refrigeration system, if the cooling water to the condenser fails, the().
-
When a refrigeration compressor has developed a high head pressure as a result of a refrigerant overcharge, you should ().
-
If a refrigeration compressor will not start, the reason may be ().
-
In the refrigeration system, a shortage of refrigerant is indicated by ().
-
A refrigerant with oil in solution has a ().
-
Before charging a refrigeration unit, the refrigerant charging lines should be()
-
In a refrigeration system, the refrigerant absorbs the latent heat of vaporization in the().
-
If a refrigeration compressor were short cycling on the low pressure cutout switch, the probable cause for this might be the ().
-
If a refrigeration compressor is short cycling on high head pressure, you should ().
-
Insufficient refrigerant in a refrigeration plant may result in ().
-
If the refrigeration compressor crankcase is sweating, the cause may be due to ().
-
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
-
If a large difference exists between the compressor discharge pressure and the pressure corresponding to the existing condensing temperature in a refrigeration system, you should().
-
Which of the problems listed could be indicated if a sight glass in the refrigerant liquid line is full of bubbles?()
-
If the suction pressure at the refrigeration compressor is below normal, the cause can be().
-
In a chilled water air conditioning unit using a reciprocating compressor, the refrigerating effect of the primary refrigerant can be increased by ().
-
If a refrigeration compressor is running continuously without lowering temperature as normal in the refrigerator, the trouble may be ().
-
In an operating refrigeration system low on refrigerant, a liquid line sight glass will()
-
If liquid refrigerant accidentally comes in contact with the eyes, () immediately.
-
If a liquid sight flow indicator in a refrigeration system shows gas bubbles in motion passing inside of the glass, there is ().
-
Some chloronated flourocarbon refrigerants may decompose into a toxic irritating gas if it is ().
-
Refrigerant enters the condenser as a ().
-
If you don’t put the milk in the refrigerator,it may__________ .
推荐题目
- 支付结算办法所称退票理由书不包括下列事项()。
- 对于主动脉瓣狭窄,超声表现不正确的是()。
- 下列属于实施出口市场多元化战略必要性的是()
- 在ISO9000族标准中,自我评定是一种()方式。
- 病毒性肝炎是由多种肝炎病毒引起的以肝脏炎症和坏死病变为主的一组传染病,主要通过粪口、血液或体液传播,临床上有些以急性表现为主,有些则以慢性肝炎为主。急性乙肝患者窗口期可检出的血清标志物是()。
- 在即算机部件中,()对人体健康影响最大,所以挑选的时候要慎重。
- 给出一段配置问你使用的是什么技术? 简要配置如下: Class-map match-all image Match protocol http www.cisco.com
- 1992年5月4日,()教授作为全国20名青年科学家代表之一,受到江泽民、乔石、李瑞环等中央领导同志的亲切接见。
- 新文化运动的主要武器是下面哪一项:()
- 马华平时上课总是爱做小动作,但是在一次语文课上,他非常认真地听讲,老师对他的行为变化给予了肯定和表扬,这种心理辅导方法是()