A.Hydrazine treatment of condensate
B.Frequent compounding
C.Chemical cleaning
D.Bottom blowing
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A.water in the fuel oil
B.broken high tension leads
C.incorrect electrode setting
D.full fuel pressure at the nozzle
A.Clean all electrical connections
B.Lift the relief valves by hand
C.Inspect and clean all solenoid valves
D.Inspect for oil and water leaks
A.carbon deposits on the flame scanner
B.high fuel oil temperature
C.low fuel oil viscosity
D.high steam pressure
A.water in the fuel oil
B.excessive cycling
C.high fuel oil pressure
D.improper burner maintenance
A.cool the furnace to prevent pre-ignition
B.remove explosive vapors from the furnace
C.evaporate accumulated unburned fuel oil
D.provide sufficient air in the furnace to allow ignition of the fuel
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Diesel engine air start system check valves are opened by （）
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（） is not installed on the main switchboar.
Using a file without a handle may result in （）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
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For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）