decreased
increased
fixed
closed
第1题：
When loading bulk liquid cargo，what is the first action you should take if a cargo valve jammed open?
A.Call the owner，operator，or terminal supervisor
B.Unplug the deck scuppers
C.Order the dock man to shut down
D.Run out the vessel's or terminal's fire hose
第2题：
Which two statements describe the behavior of the server's SQL mode?（）
第3题：
If the head pressure of a reciprocating refrigeration compressor is excessive
A.the relief valve should open before the high pressure cutout
B.the relief valve should open and allow the excess refrigerant to flow to the receiver
C.the high pressure cutout switch should operate before the relief valve opens
D.you should close the discharging valve
第4题：
be jammed
be opened
be seated
be broken
第5题：
fuel supply valve should be closed
hatches，doors，and oar ports should be closed
air cylinder shut-off valve should be closed
engine should be shut off
第6题：
To ensure proper seating when closing a valve on a tank，the valve should be ______．
A.Set up as tight as possible by hand
B.Set up tight using a valve wrench
C.Closed，opened a half turn，and then closed
D.Closed against the stop and the locking pin inserted
第7题：
a subsequent temperature rise will cause the cargo to overflow
air pockets may cause the cargo to bubble out of the ullage hole
the increased viscosity of the product requires higher loading pressure which increases the chances of a spill
the tank valve may be stiff and a spill will occur before the valve can be closed
第8题：
To add refrigerant to the low side of an air conditioning system, the refrigerant should be introduced through the_______ .
A.suction service valve as a vapor
B.suction service valve as a liquid
C.discharge service valve as a vapor
D.charging valve as a liquid
第9题：
stand-by engine
full ahead
finished with engine
full away
第10题：
the inlet valve is open
the exhaust valve is open
both valves are close
both valves are open