海船船员考试
单选题The presence of bubbles in a refrigeration system liquid line may （）.A promote refrigerant dehydrationB be absorbed in the receiverC cause low condensing pressureD carry moisture and lead to corrosion
题目
promote refrigerant dehydration
be absorbed in the receiver
cause low condensing pressure
carry moisture and lead to corrosion
相似问题和答案
第1题：
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?
A.A shortage of liquid refrigerant.
B.Excessive frost on the evaporator.
C.Excessive condenser cooling water.
D.Insufficient condenser cooling water flow.
第2题：
activate the driers
change color
secure the compressor
add a predetermined amount of liquid drier
第3题：
Some refrigeration systems have chemical moisture indicators installed in conjunction with the sight glass in the liquid line If excess moisture is present in the system, the indicator will
A.activate the driers
B.change color
C.secure the compressor
D.add a predetermined amount of liquid drier
第4题：
be clear
be blue
be light green
show bubbles
第5题：
a shortage of refrigerant in the system
air in the system
an accumulation of liquid refrigerant in the crankcase
a shortage of oil in the crankcase
第6题：
insufficient condenser cooling water
excessive condenser cooling water
air in the refrigeration system
excessive refrigerant in the system
第7题：
Proper refrigerant charge
Faulty expansion valve
Insufficient refrigerant
Solenoid valve stuck open
第8题：
In the refrigeration system, a shortage of refrigerant is indicated by
A.the compressor short cycling on high pressure cut out switch
B.high suction pressure
C.high head pressure
D.bubbles in the sight glass
第9题：
flooding back
superheating
overflowing
recycling
第10题：
restriction in refrigerant piping
air and non-condensable gases in the condenser
water in the refrigerant
flooding back of liquid refrigerant from the evaporator