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单选题
Fuel oil is regularly transferred to the day tank in order to （）
A
allow impurities to settle out of the fuel
B
allow air to escape from the fuel
C
make fuel available for immediate use
D
all of the above
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单选题The viscosity regulator controls the （） of the fuel oil in order to provide the oil at the correct viscosity for combustion.A
temperatureB
pumping rateC
pressureD
heat
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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
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单选题Fuel oil is regularly transferred to the day tank in order to （）A
allow impurities to settle out of the fuelB
allow air to escape from the fuelC
make fuel available for immediate useD
all of the above
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单选题In a typical fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.A
a service tankB
a collecting tankC
a sumpD
a settling tank
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单选题A viscosity regulator used for an engine is usually provided in order to （） for an engine burning heavy fuel oil.A
regulate the fuel supplyB
maintain a constant fuel viscosity at the fuel valvesC
maintain efficient coolingD
alter the fuel density
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单选题A dirty fuel oil filter element can be detected by （）A
Visual inspection of the elementB
the pressure drop cross the filterC
high fuel oil tank temperatureD
increase flow rate from the filter
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单选题Fuel oil tank vents are fitted with a screen which will stop（）.A
oil from flowing out of the tank ventB
air from entering the tank ventC
vapors from leaving the tank ventD
flames on deck from entering the tank vent
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单选题The depth of fuel oil in a tank is normally measured through the（）A
vent lineB
overflow lineC
feed lineD
sounding tube
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单选题The viscosity regulator controls the fuel oil temperature （） provide oil at the correct viscosity for combustion.A
in order thatB
because ofC
in order toD
owing to
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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
contamination from the saltwater flushing system
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单选题To receive oil residues from the purification of fuel and lubricating oils in the machinery spaces, what kind of tank(s) should be provided on board?（）A
bilge tankB
sludge tankC
overflow tankD
oil collecting tank
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单选题When preparing a ship for heavy weather，fuel oil day tanks should be（）.A
pumped overboard to calm the seasB
drained to the lower hull to reduce free surfacesC
filled to ensure that sufficient fuel oil is available during a lengthy emergencyD
partially drained to increase free surfaces in order to reduce motions
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单选题Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank?（）A
Commence draining that tank as quickly as possibleB
Seal off all vents to that tankC
Activate the CO2 system to that tankD
Shut off the steam heating coils
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单选题The viscosity regulator controls （） in order to provide oil at the correct viscosity for combustion.A
the engines speedB
the engines loadC
the fuel oil temperatureD
the fuel oil flow
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单选题The pollution prevention regulations do not apply to the transfer or discharge of （）A
bunker fuel for use aboard shipB
lubricating oil for use aboard shipC
coconut oil carried in tank vesselsD
oily water from a ships bilges
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单选题The （） or balance tank collects the re-circulated fuel oil.A
bufferB
sumpC
bilgeD
overflowing
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单选题An oil water monitor is required in order to measure （）.A
the oil content in waterB
the water content in fuel oilC
the water level in bilge wellD
the oil level in bilge well
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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Fuel oil day tanks for diesel engines must be checked and cleaned and cleaned at regular intervals in order to remove（）A
sludgeB
waterC
micro-organism growthD
all of the above
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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
checking fuel oil strainers
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单选题Permitting a diesel engine fuel oil day tank to run dry can cause （）A
overheated injection pumpsB
water condensation in the cylindersC
fuel dilution of the lube oilD
air in the fuel system
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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
quantity of fuel to be receivedB
flash point of the fuel as it is receivedC
fuel temperature as it is receivedD
viscosity of the fuel being received
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单选题Once all cylinders are firing regularly, （） is shut off.A
the exhaust valveB
the starting airC
the inlet valveD
the fuel oil
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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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