A.stopping the flow of gas
B.reducing the chemical chain reaction
C.increasing the oxygen supply
D.cooling below the autoignition point
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A.burner valve
B.root valve
C.quick closing valve
D.oil return valve
A.paint thinner in an open can
B.fuel accumulation in the bilge
C.oily rags in an unvented compartment
D.gasoline stored in steel drums
A.foam
B.CO2
C.low velocity water fog
D.high velocity water fog
A.close the vent
B.pump out the tank
C.activate the fixed CO2 system
D.cut off the heating coils
A.the lifting appliance can always lift the freight within its rated load
B.attention should be paid in order not to break the wedge when lifting cargo
C.sometimes the lifting work needs other assistance other than the lifting appliance
D.lifting work should be done with every part fit, tightness or adhesion
最新試題
The main purpose of port State control is not to（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
Diesel engine air start system check valves are opened by （）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.