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单选题
If fuel tank levels are found to have increased after a grounding, you should suspect （）.
A
a damaged pneumercator line
B
a puncture, crack, or hole in the skin of the vessel
C
improper record keeping of fuel transfer activities
D
contamination of the contaminated steam supply system
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更多 “单选题If fuel tank levels are found to have increased after a grounding, you should suspect （）.A a damaged pneumercator lineB a puncture, crack, or hole in the skin of the vesselC improper record keeping of fuel transfer activitiesD contamination of the contaminated steam supply system” 相关考题
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单选题If the overflow tank high-level alarm sounds while the fuel oil tanks are being topped off, the engineer should （）.A
close the static leg filling valveB
close the overflow tank falling valveC
reduce the fuel oil pumping rateD
stop the fuel oil pumping operation
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单选题A small fuel spillage has occurred during helicopter refueling. After the leak has been stopped and fire-control personnel have been notified and are standing by，the next step is to（）.A
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have helicopter move to a safer locationC
wash spilled fuel away with a flood of waterD
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air from entering the tank ventC
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单选题Your vessel has run aground and upon taking fuel oil tank soundings, you find that a fuel tank level has increasedYou therefore should suspect （）.A
condensation in the fuel tankB
a crack in the hull portion of the fuel tankC
a load of bad fuelD
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单选题In order to start a large, low-speed, main propulsion diesel engine on high viscosity fuel after an extended shutdown, the （）A
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lube oil outlet temperature should be increased 20℃ above normalD
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单选题Fire protection regulations for towing vessels require any fuel line subject to internal head pressure from fuel in the tank to（）.A
be fitted with a positive fuel shut-off valve located at the tankB
have a shut-off valve at the top of the tankC
have a gate valve easily accessible in the space where the tank is locatedD
have a drain cock at the lowest point in the fuel line
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单选题You may improve a vessels stability by （）.A
keeping the fuel tanks topped offB
increasing the free surface effectC
keeping the fuel tanks at least half MID
keeping at least one fuel tank empty for slops
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bufferB
sumpC
bilgeD
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单选题Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）A
double bottom fuel oil tank temperatureB
heater supply steam flowC
pressure of the fuel supplied to the burnersD
attemperator steam flow in the heater discharge circuit
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单选题If emergency welding repairs must be made to the upper area of a fuel tank, the tank and/or adjacent compartments may need to be （）A
gas freedB
inertedC
filled with waterD
all of the above as necessary
考题
单选题After fuel tanks have been topped off, which of the listed procedures should be followed next?（）A
The pressure-vacuum relief valve should be resetB
The tanks should be made seaworthy to prevent contaminationC
The tanks should be sounded to make sure the levels are not risingD
The tanks should be marked with a bull stamp on the manifold filling valve
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be decreasedC
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单选题Following a grounding, you can best determine that a SLACK fuel oil tank has been holed by （）.A
sounding the tankB
waiting for the vessel to listC
examining tank boundariesD
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overheated injection pumpsB
water condensation in the cylindersC
fuel dilution of the lube oilD
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单选题The amount of expansion space to be left in a fuel tank when fuel oil is being received, is determined by the （）.A
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flash point of the fuel as it is receivedC
fuel temperature as it is receivedD
viscosity of the fuel being received
考题
单选题Gasoline fuel tank vents should terminate（）.A
in the engine compartmentB
in the fuel tank spaceC
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单选题When the load is increased on a turbocharged diesel engine, the amount of increased air supplied by the turbocharger will（）A
lag behind the increased fuel supplied to the engineB
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enter the engine before the increased fuel supplyD
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单选题In fighting a fire in a fuel tank, the FIRST action you should attempt is to （）.A
secure all sources of fresh air to the tankB
begin transferring the fuel to other tanksC
top off the tank to force out all vaporsD
station someone at the fixed CO2 release controls
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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
engage the jacking gearC
secure the lube oil pumpD
shut off the fuel at the day tank
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