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单选题
Permitting a diesel engine fuel oil day tank to run dry can cause （）
A
overheated injection pumps
B
water condensation in the cylinders
C
fuel dilution of the lube oil
D
air in the fuel system
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unburned fuel vapors in the scavenge air receiverC
lube oil vapors in the crank caseD
lube oil vapors in the engine room
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单选题When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.A
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remove the fuel oil by centrifugingD
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单选题Which of the listed diesel engine operating conditions should be checked immediately after any diesel engine is started?（）A
Exhaust temperatureB
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单选题Late fuel oil injection in a diesel engine can result in （）A
fuel knockB
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low compression pressureD
high exhaust temperature
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单选题Worn diesel engine intake valve guides can result in （）A
increased engine breathing efficiencyB
excessive valve lashC
excessive lube oil consumptionD
lower than normal fuel consumption
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单选题The sludge tank installed in the diesel engine room is used to collect（） Ⅰ.sludge from the fuel oil settling tanks ad centrifuge Ⅱ.water that has been collected in the settling tankA
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单选题Duty officer informs us that the vessel is out of harbor and in “Full Ahead”We are going to run （）.A
diesel oil instead of fuel oilB
fuel oil instead of diesel oilC
diesel oil instead fuel oilD
fuel oil instead diesel oil
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单选题If the low level alarm of the diesel fuel day tank fails to function, you can expect trouble from（）A
overheated injection pumpsB
water condensed in the cylindersC
fuel dilution of the lube oilD
air in the fuel system
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clogged filtersB
poor combustionC
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单选题Faulty operation of diesel engine fuel injection nozzles can be directly caused by （）.A
water in the fuel oil supplyB
excessive fuel nozzle holder coolingC
a distorted fuel spray patternD
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increasing cooling water flowB
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单选题Fuel oil injected into the cylinder of a diesel engine just after the piston passes top dead center, will（）A
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loss of powerB
misfiringC
low fuel oil pressureD
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单选题The main propulsion diesel continues running after you try to shut downYoushould now attempt to（）A
stop the combustion air supplyB
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secure the lube oil pumpD
shut off the fuel at the day tank
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