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单选题
Excessively warm water leaving condenser may be caused by（）
A
fouled tubes in shell and tube condenser
B
too little or too warm condenser water
C
air or non-condensable gas in system
D
overcharge of refrigerant
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考题
单选题Excessively warm water leaving condenser may be caused by（）A
fouled tubes in shell and tube condenserB
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单选题In a refrigeration system, if the cooling water to the condenser fails, the（）.A
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考题
单选题Which of the following may cause that excessively warm water leaves the condenser in a refrigeration plant? （） (1) too little cooling water (2) too much cooling water (3) too warm cooler waterA
（1）onlyB
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anyof（1）and（3）D
anyof（1）and（2）
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Fresh water may be obtained from fishB
Lifeboat covers or canopies should be washed with rain before drinking water is collectedC
Fresh water may be collected from condensation inside the liferaftD
Seawater should never be consumed
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