單項選擇題Where tanks are arranged for either oil or ballast （） must be fitted in the pipe so that only the ballast main or the oil transfer main connected to the tank.
A.a sea water chest
B.a change-over chest
C.a buffer tank
D.a three-way valve
您可能感興趣的試卷
你可能感興趣的試題
1.單項選擇題The switchboards are those in which all the live parts are installed behind the panels and only the operating handles and instruments are on the front（）
A.open
B.open front type
C.live front type
D.dead front type
2.單項選擇題Modern centrifuge designs enable continuous over a considerable period of timeThis is achieved by which is timed to discharge the sludge at regular intervals（）
A.an injection process
B.an ejection process
C.a separation process
D.a heating process
最新試題
To proceed to the assistance of a ship in distress is（）
題型：單項選擇題
The ISPS Code consists of a mandatory section-Part A, which shows（）
題型：單項選擇題
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
題型：單項選擇題
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
題型：單項選擇題
If separating effect is not good, which measure should be taken （）
題型：單項選擇題