單項(xiàng)選擇題What color exhaust will be exhibited when a slow speed two-stroke/cycle main propulsion diesel engine, designed to operate on light and heavy fuel oil, is operated on insufficiently preheated heavy fuel oil?()

A.White
B.Black
C.Blue
D.Clear


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1.單項(xiàng)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

2.單項(xiàng)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

3.單項(xiàng)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

4.單項(xiàng)選擇題A diesel engine may fail to start due to ()

A.low air charge temperature
B.high cranking speed
C.excessive fuel dilution of lube oil
D.high compression pressure

5.單項(xiàng)選擇題A diesel engine fails to start due to excessive water in the fuelBefore the engine can be started, the water should be removed from the()

A.fuel lines
B.lube oil filter
C.crank case pump
D.rocker arm reservoir