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单选题
Which of the following statements describes the results of excessive microbiological growths within a fuel system?（）
A
all excessive amounts of growth will cause the main engines of the vessel to stall due to the inability to supply the proper quantities of fuel to satisfy the existing load
B
The deposits produced by these growths form blockages and flow restrictions ultimately leading to improper atomization of the fuel into the cylinders
C
Eventually the growth of these organisms will deplete the supply of food available to them, which in turn will cause their demise
D
If continual growth is permitted, a sweet odor similar to that associated with baking will be noticed when system components are opened for inspection
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更多 “单选题Which of the following statements describes the results of excessive microbiological growths within a fuel system?（）A all excessive amounts of growth will cause the main engines of the vessel to stall due to the inability to supply the proper quantities of fuel to satisfy the existing loadB The deposits produced by these growths form blockages and flow restrictions ultimately leading to improper atomization of the fuel into the cylindersC Eventually the growth of these organisms will deplete the supply of food available to them, which in turn will cause their demiseD If continual growth is permitted, a sweet odor similar to that associated with baking will be noticed when system components are opened for inspection” 相关考题
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Which of the following problems is the main source of fuel pump and injection system malfunctions?A.Improper lubricationB.Air in the fuel systemC.Coated fuel linesD.Excessive vibration
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Which of the following factors is the MOST likely cause of a power supply fan failure?()
A. Extreme temperature variancesB. Extreme humidity variancesC. Power stability fluctuationsD. Excessive dust accumulation
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If a diesel engine turned over freely but failed to start, the cause could be ________.A.water in the fuelB.cold lube oilC.excessive starting air pressureD.excessive fuel pressure
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One cylinder of a diesel engine is persistently knocking and does not cease(停止) when the fuel supply to that cylinder is secured.Which of the following problems may be the cause?A.Low loading of the cylinderB.Excessive cooling of that pistonC.Sluggish ring action on the pistonD.A mechanical defect in a working part
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Which of the following factors is the MOST likely cause of a power supply fan failure？（）A、 Extreme temperature variancesB、 Extreme humidity variancesC、 Power stability fluctuationsD、 Excessive dust accumulation
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单选题Which of the following bottlenecks would MOST likely cause excessive hard drive activity？（）A
Inadequate RAMB
Slow processorC
PCI busD
Excessive network traffic
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fuel pumpsB
cylindersC
fuel strainersD
all of above
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单选题Which of the following problems is the main source of fuel pump and injection system malfunctions?（）A
Improper lubricationB
Air in the fuel systemC
Coated fuel linesD
Excessive vibration
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单选题Which of the following factors is the MOST likely cause of a power supply fan failure？（）A
Extreme temperature variancesB
Extreme humidity variancesC
Power stability fluctuationsD
Excessive dust accumulation
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单选题If a tow-stroke/diesel engine is over-speeding due to leakage of lube oil into the cylinders, what should you do to stop the engine?（）A
Move the fuel control mechanism to the no fuel positionB
Block the fuel supply by closing the master fuel valveC
Shut off the fuel supply and block the flow of intake airD
Relieve all pressure in the fuel system
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单选题Which of the following condition is likely to develop if the thermocouple element of a pyrometer becomes coated with excessive amounts of combustion by-products?（）A
Indicated exhaust pressure readings will increaseB
Pyrometer responses will be retardedC
Indicated cylinder temperature readings will increaseD
Indicated firing pressure readings will increase
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单选题Which of the following conditions can cause excessive lube oil consumption in a diesel engine?（）A
Low lube oil temperatureB
Dirty lube oil strainerC
Low lube oil pressureD
High lube oil temperature
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loss of flow in the fuel systemB
loss of pressure in the air systemC
loss of flow in the lubricating systemD
loss of pressure in the lubricating system
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单选题Which of the following bottlenecks would MOST likely cause excessive hard drive activity?（）A
Inadequate RAMB
Slow processorC
PCI busD
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单选题A Windows workstation is taking an excessive amount of time to load the desktop after login.Which of the following could be causing the issue?（）A
BIOS on the system board needs to be updated.B
The power supply is providing insufficient wattage.C
The incorrect video drivers are installed on the computer.D
Too many startup applications are running.
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单选题Which of the following conditions could be a cause of excessive fuel dilution of diesel engine lube oil?（）A
Leaking fuel injectorsB
Lower than normal compressionC
Delayed fuel injectionD
All of the above are correct
考题
单选题Which of the following will take place if the clearance of the main bearings are excessive?（）A
bearing knocksB
dropping of pressure of LOC
noisesD
all the above
考题
单选题Which of the following may take place if the clearance of the main bearings are excessive?（）A
bearing knocksB
dropping of pressure of LOC
noisesD
all the above
考题
单选题Which of the following italicized phrases indicates CAUSE?A
Why don’t you do it for the sake of your friends?B
I wish I could write as well as you.C
For all his efforts, he didn’t get an A.D
Her eyes were red from excessive reading.
考题
单选题To avoid excessive pressures in the fuel oil filling system during bunkering, you should （）.A
close the tank filling valves quicklyB
top off all tanks at the same timeC
rill completely all tanks to less than 95% fullD
reduce the loading rate when topping off
考题
单选题Air in the fuel lines to the fuel injection nozzles of a diesel engine will cause the engine to （）A
burn excessive amounts of lube oilB
overheat without smokingC
operate with reduce power or stopD
run away without load
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