单项选择题
A.every oil tanker B.every ship of 400 tons gross tonnage and above C.A and B D.Neither A nor B
Which of the following should be recorded in Oil Record...
单项选择题Which of the following should be recorded in Oil Record Book Part I (machinery space operation) ?（）
A.Non automatic discharge overboard of machinery space bilge water B.Automatic discharge overboard of machinery space bilge water C.A and B D.Neither A nor B
A ruptured diaphragm in a thermostatic expansion valve ...
单项选择题A ruptured diaphragm in a thermostatic expansion valve will cause the valve to （）.
A.open B.close C.remain in its position D.flood the evaporator with refrigerant
Black smoke coming from a boiler can be caused by （）.A....
单项选择题Black smoke coming from a boiler can be caused by （）.
A.low water level B.low oil pressure C.excessively high fuel pressure D.an improper air/fuel ratio
