A.Too much refrigerant B.Too little refrigerant C.Refrigerant is ran out D.Running is over
A.increase B.reduce C.maintain constant D.None of the above is true
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 water
A.(1)only B.anyof(1),(2)and(3) C.anyof(1)and(3) D.anyof(1)and(2)