單項選擇題Which operation may cause the pressure in an inert tank to fall below the prescribed limits（）.

A.Loading
B.Discharging
C.Crude oil washing
D.Steaming tanks


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels（）.

A.A centerline crane can never be operated in tandem
B.One crane is able to work one end of two adjacent hatches
C.These cranes are more economical and weigh less than outboard-mounted cranes
D.One crane is able to work both sides of the ship

2.單項選擇題Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.

A.The cranes may be operated independently
B.The cranes may be interconnected for twin operation
C.When twinned，the crane rotation on the foundation assembly is unlimited
D.All of the above

3.單項選擇題Which of the following statement（s）is/are FALSE regarding a twin pedestal crane set （）.

A.The cranes may be operated independently
B.The cranes may be interconnected for twin operation
C.The cranes are powered by independent internal combustion power units
D.All of the above

4.單項選擇題Which method should be used to warm up the pump turbines prior to discharge（）.

A.Lock the turbine rotor and slowly bleed in steam until operating temperature is reached
B.Run the pump at high speed with the discharge valves closed
C.Run the turbine at slow speed with the pump disconnected
D.Shut the discharge valve and run the pump at slow speed

5.單項選擇題Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil（）.

A.The loading dock
B.The midpoint of the barge
C.Within 25 feet of the pump engine
D.Above the forward rake end