單項選擇題Engine operating conditions may be indicated by the color of the exhaust smoke.Black smoke could indicate()

A.an insufficient speed droop setting
B.an overloaded engine
C.clogged drain holes in the oil control rings
D.complete combustion


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1.單項選擇題A dark exhaust from a running diesel engine can be caused by ()

A.late ignition
B.water in the fuel
C.high compression temperature
D.starting valve stuck open

3.單項選擇題Combustion knock will most likely occur as a result of using a fuel with()

A.low ignition quality
B.a high volatility
C.low ignition delay
D.a high cetane number

4.單項選擇題High exhaust temperatures from all of cylinder of a turbocharged, four-stroke/cycle diesel engine can be caused by an()

A.inoperative turbocharger
B.inadequate fuel supply
C.overload on one cylinder
D.unequal load distribution

5.單項選擇題One of the factors limiting the amount of load which can be put on a modern marine diesel engine is the ()

A.governor sensitivity
B.exhaust temperature
C.fuel injection pressure
D.speed of the can shaft

最新試題

If two A.C.generators are to be operated in parallel, the load is distributed evenly by()

題型:單項選擇題

For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()

題型:單項選擇題

When does auxiliary burner of incinerator put into operation? ()Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish

題型:單項選擇題

Which one is NOT the ‘clear grounds’ for a more detailed inspection?()

題型:單項選擇題

() is not installed on the main switchboar.

題型:單項選擇題

Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()

題型:單項選擇題

The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()

題型:單項選擇題

“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()

題型:單項選擇題

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.

題型:單項選擇題

()connectors hold best if a wire is accidentally pulled or a connection becomes loose.

題型:單項選擇題