单项选择题
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
单项选择题 Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil（）.
单项选择题 When viewed from above，the best position for the guy in relation to the boom is（）.
单项选择题 When using slings，cargo handlers should take all the following precautions except（）.